{"title":"GEO Knife","description":"\u003cp\u003e\u003cb\u003eBorn from Geometry. Crafted for the Modern Enthusiast.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e was founded to break away from traditional, predictable cutlery shapes. Inspired by structural architecture and polygonal industrial design, GEO redefines the modern folding knife as a functional kinetic sculpture. Every bevel catches the light; every millimeter is tuned for uncompromising utility and pocket-ready ergonomics. At \u003ca href=\"https:\/\/edcmall.cn\/\"\u003eEDCMALL\u003c\/a\u003e, we are proud to showcase the complete GEO Knife lineup—a masterclass in modern edge tools for discerning EDC collectors worldwide.\u003c\/p\u003e","products":[{"product_id":"geo-knife-cirex-geo2601a","title":"GEO Knife Cirex GEO2601A M390 Blade G10 Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-cirex\"\u003eGEO Knife Cirex\u003c\/a\u003e GEO2601A combines exceptional craftsmanship with outstanding performance. Featuring a premium Bohler M390 stonewash blade—a powder-metallurgical stainless steel renowned for edge retention and corrosion resistance—this folding knife delivers reliability for outdoor and daily carry use. The ergonomic G10 handle ensures a secure, intuitive grip in any position, while the crossbar lock mechanism provides dependable blade security. With a 3.5-inch blade, titanium hardware, and ambidextrous design, this 83.5g EDC knife balances ultralight utility with durability. Ideal for camping, hiking, and everyday cutting tasks, the GEO2601A represents the perfect choice for discerning knife enthusiasts seeking superior performance and build quality.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2601A\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 8.0 inch \/ 205mm\u003cbr\u003eBlade Length: 3.5 inch \/ 89mm\u003c\/p\u003e\n\u003cp\u003eHandle Length:  4.5 inch \/ 116mm\u003cbr\u003eHandle Thickness: 0.48 inch \/ 12.1mm\u003cbr\u003eBlade Width: 1.2 inch \/ 30 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Clip Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: G10\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar : Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 2.95 oz \/ 83.5 g\u003cbr\u003eDesigner: Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601A - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Cirex GEO2601A folds Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e performance into a slim crossbar-lock chassis designed by Fabian Hobbelen for \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e. The Black G10 scales keep the knife at 2.95 oz, while the \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e blade - vacuum and cryogenically hardened to 60-62 HRC in a clip point profile - holds its edge through weeks of cardboard, rope and food prep. A phosphor-bronze washer pivot, titanium clip hardware and the fully ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e make deployment silent and fumble-free from either hand, and the whole package sits comfortably inside the premium tier of \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e. Carry it daily as an \u003ca href=\"\/zh-hans\/collections\/edc-all-products\"\u003eEDC\u003c\/a\u003e tool, and it will outlast folders costing twice as much.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601A - Bohler M390 Blade Performance\u003c\/h2\u003e\n\u003cp\u003eM390 is the headline act here. Bohler's third-generation powder-metallurgy \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e mixes high chromium with dense vanadium and molybdenum carbides, so it resists wear like a tool steel while shrugging off corrosion like a true stainless. The trade is sharpening difficulty - budget for diamond or CBN stones - and a modest willingness to chip under prying loads. In exchange you get one of the longest-lasting working edges in the production knife world, heat-treated here with a vacuum and cryogenic cycle for full carbide development.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601A - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eBlack G10 scales over a full titanium hardware set\u003c\/li\u003e\n\u003cli\u003eFully ambidextrous crossbar lock - the strongest folder lock class in production\u003c\/li\u003e\n\u003cli\u003ePhosphor-bronze washer pivot for a smooth, damped, gritty-day action\u003c\/li\u003e\n\u003cli\u003e3.5 inch \/ 89 mm blade in clip point profile, stonewash finish, flat grind\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium tip-up pocket clip, pivot cap and screws throughout\u003c\/li\u003e\n\u003cli\u003eLightweight at 83.5 g with a slim 11-12 mm handle profile\u003c\/li\u003e\n\u003cli\u003eFabian Hobbelen design with vacuum + cryogenic heat treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601A - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily package duty\u003c\/strong\u003e - Case-hardened edge life for a work pocket that opens boxes, tape and shrink wrap all week without a touch-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange bag resident\u003c\/strong\u003e - The ambidextrous crossbar action works gloved, and the blackwash or glow finish is easy to find on a bench in low light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen second\u003c\/strong\u003e - The 3.38-inch modified Wharncliffe slices onions, salami and cord cleanly with its full-length straight edge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUrban EDC\u003c\/strong\u003e - A 7.96-inch overall footprint with chamfered edges rides flat and quiet; the titanium or GITD scale keeps it looking dressy at dinner.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector display\u003c\/strong\u003e - Limited to 200 pieces (K1099V11) with Munko Knives design language, copper-tone hardware and quasar-inspired chamfers that photograph beautifully.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the crossbar lock easy to close one-handed?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes - pull the lock bar sideways with your index finger and let the blade fall or guide it shut. Your fingers never cross the blade path, which is why crossbar locks are a favorite with both left- and right-handed users.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow tough is Bohler M390 in daily use?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAt 60-62 HRC M390 holds an edge roughly twice as long as mid-range stainless, but it prefers slicing to prying. Use it within its design envelope and it will go months between touch-ups.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat washers run the blade?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003ePhosphor-bronze washers give the Aska and Cirex a smooth, damped swing that shrugs off pocket grit far better than bare metal-on-metal pivots.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the knife come with a pocket clip?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes - a 6AL4V titanium clip set for tip-up, right-side carry. The Aska adds a ring pommel, so many owners also run it on a lanyard or in a pouch.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the Aska a wharncliffe or a drop point?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe spec sheet lists the Aska as a drop point with a long straight edge - functionally a hybrid that slices like a wharncliffe but keeps a stronger tip. The Cirex is a true clip point.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601A - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA blade finish achieved by tumbling (stonewash) or successive hand-lapped abrasives (hand-rubbed satin); both hide carry wear and kill glare better than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601A - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel-first buyers who want M390 performance at a mid-three-figure price\u003c\/li\u003e\n\u003cli\u003eG10 loyalists who want a light, grippy, weatherproof scale instead of titanium\u003c\/li\u003e\n\u003cli\u003eLeft-handers - the crossbar lock and washers make it completely ambidextrous\u003c\/li\u003e\n\u003cli\u003eCollectors tracking the GEO Knife lineup; the Cirex is the brand's new value M390 line\u003c\/li\u003e\n\u003cli\u003eAnyone who wants M390, titanium hardware and a crossbar lock without paying flagship prices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry or baton with your EDC - 60-62 HRC M390 chips under lateral abuse\u003c\/li\u003e\n\u003cli\u003eYou want a sub-3-inch legal-carry blade; the Cirex runs a 3.5-inch blade\u003c\/li\u003e\n\u003cli\u003eYou hate diamond stones - M390 reprofiling on ordinary aluminum-oxide is miserable\u003c\/li\u003e\n\u003cli\u003eYou prefer warm, hand-filling handles; the Cirex slabs are slim and flat\u003c\/li\u003e\n\u003cli\u003eYou want titanium scales at this price - the G10 keeps the cost down instead\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601A - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the blade dry after every use - M390 is stainless, not stain-proof, and pocket humidity will still speckle it.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional aluminium-oxide stones barely cut this steel.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on a fine ceramic or leather strop - heavy pressure chips a hard apex.\u003c\/li\u003e\n\u003cli\u003eRinse with warm water and mild dish soap when it gets grimy, then dry thoroughly before it goes back in the pocket.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or use the tip as a screwdriver; hard steel trades impact toughness for wear resistance.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel is the number one cause of a sluggish action.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium hardware gall if you overtighten it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533159338181,"sku":"GEO2601A","price":95.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_-_2.jpg?v=1790243369"},{"product_id":"geo-knife-cirex-geo2601b","title":"GEO Knife Cirex GEO2601B M390 Blade G10 Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-cirex\"\u003eGEO Knife Cirex\u003c\/a\u003e GEO2601B exemplifies premium EDC craftsmanship with its exquisite design and exceptional performance. Featuring a Bohler M390 stonewash blade—a powder-metallurgical stainless steel offering unparalleled wear resistance and edge retention—this folding knife delivers superior cutting performance. The blade's HRC60-62 hardness ensures lasting sharpness, while the tiffany blue G10 handle provides an ergonomic, secure grip suitable for any environment. Its crossbar lock mechanism guarantees reliable blade security during demanding tasks. Built for outdoor enthusiasts and daily carry, the knife combines ultralight utility with sophisticated aesthetics. Weighing just 83.5g and measuring 8 inches overall, it represents the ideal choice for those seeking durability, performance, and style in a compact EDC solution.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2601B\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 8.0 inch \/ 205mm\u003cbr\u003eBlade Length: 3.5 inch \/ 89mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.5 inch \/ 116mm\u003cbr\u003eHandle Thickness: 0.48 inch \/ 12.1mm\u003cbr\u003eBlade Width: 1.2 inch \/ 30 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Clip Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: G10\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar : Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 2.95 oz \/ 83.5 g\u003cbr\u003eDesigner: Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601B - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Cirex GEO2601B folds Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e performance into a slim crossbar-lock chassis designed by Fabian Hobbelen for \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e. The Tiffany Blue G10 scales keep the knife at 2.95 oz, while the \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e blade - vacuum and cryogenically hardened to 60-62 HRC in a clip point profile - holds its edge through weeks of cardboard, rope and food prep. A phosphor-bronze washer pivot, titanium clip hardware and the fully ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e make deployment silent and fumble-free from either hand, and the whole package sits comfortably inside the premium tier of \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e. Carry it daily as an \u003ca href=\"\/zh-hans\/collections\/edc-all-products\"\u003eEDC\u003c\/a\u003e tool, and it will outlast folders costing twice as much.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601B - Bohler M390 Blade Performance\u003c\/h2\u003e\n\u003cp\u003eM390 is the headline act here. Bohler's third-generation powder-metallurgy \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e mixes high chromium with dense vanadium and molybdenum carbides, so it resists wear like a tool steel while shrugging off corrosion like a true stainless. The trade is sharpening difficulty - budget for diamond or CBN stones - and a modest willingness to chip under prying loads. In exchange you get one of the longest-lasting working edges in the production knife world, heat-treated here with a vacuum and cryogenic cycle for full carbide development.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601B - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eTiffany Blue G10 scales over a full titanium hardware set\u003c\/li\u003e\n\u003cli\u003eFully ambidextrous crossbar lock - the strongest folder lock class in production\u003c\/li\u003e\n\u003cli\u003ePhosphor-bronze washer pivot for a smooth, damped, gritty-day action\u003c\/li\u003e\n\u003cli\u003e3.5 inch \/ 89 mm blade in clip point profile, stonewash finish, flat grind\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium tip-up pocket clip, pivot cap and screws throughout\u003c\/li\u003e\n\u003cli\u003eLightweight at 83.5 g with a slim 11-12 mm handle profile\u003c\/li\u003e\n\u003cli\u003eFabian Hobbelen design with vacuum + cryogenic heat treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601B - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily package duty\u003c\/strong\u003e - Case-hardened edge life for a work pocket that opens boxes, tape and shrink wrap all week without a touch-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange bag resident\u003c\/strong\u003e - The ambidextrous crossbar action works gloved, and the blackwash or glow finish is easy to find on a bench in low light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen second\u003c\/strong\u003e - The 3.38-inch modified Wharncliffe slices onions, salami and cord cleanly with its full-length straight edge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUrban EDC\u003c\/strong\u003e - A 7.96-inch overall footprint with chamfered edges rides flat and quiet; the titanium or GITD scale keeps it looking dressy at dinner.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector display\u003c\/strong\u003e - Limited to 200 pieces (K1099V11) with Munko Knives design language, copper-tone hardware and quasar-inspired chamfers that photograph beautifully.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the crossbar lock easy to close one-handed?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes - pull the lock bar sideways with your index finger and let the blade fall or guide it shut. Your fingers never cross the blade path, which is why crossbar locks are a favorite with both left- and right-handed users.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow tough is Bohler M390 in daily use?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAt 60-62 HRC M390 holds an edge roughly twice as long as mid-range stainless, but it prefers slicing to prying. Use it within its design envelope and it will go months between touch-ups.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat washers run the blade?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003ePhosphor-bronze washers give the Aska and Cirex a smooth, damped swing that shrugs off pocket grit far better than bare metal-on-metal pivots.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the knife come with a pocket clip?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes - a 6AL4V titanium clip set for tip-up, right-side carry. The Aska adds a ring pommel, so many owners also run it on a lanyard or in a pouch.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the Aska a wharncliffe or a drop point?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe spec sheet lists the Aska as a drop point with a long straight edge - functionally a hybrid that slices like a wharncliffe but keeps a stronger tip. The Cirex is a true clip point.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601B - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA blade finish achieved by tumbling (stonewash) or successive hand-lapped abrasives (hand-rubbed satin); both hide carry wear and kill glare better than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601B - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel-first buyers who want M390 performance at a mid-three-figure price\u003c\/li\u003e\n\u003cli\u003eG10 loyalists who want a light, grippy, weatherproof scale instead of titanium\u003c\/li\u003e\n\u003cli\u003eLeft-handers - the crossbar lock and washers make it completely ambidextrous\u003c\/li\u003e\n\u003cli\u003eCollectors tracking the GEO Knife lineup; the Cirex is the brand's new value M390 line\u003c\/li\u003e\n\u003cli\u003eAnyone who wants M390, titanium hardware and a crossbar lock without paying flagship prices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry or baton with your EDC - 60-62 HRC M390 chips under lateral abuse\u003c\/li\u003e\n\u003cli\u003eYou want a sub-3-inch legal-carry blade; the Cirex runs a 3.5-inch blade\u003c\/li\u003e\n\u003cli\u003eYou hate diamond stones - M390 reprofiling on ordinary aluminum-oxide is miserable\u003c\/li\u003e\n\u003cli\u003eYou prefer warm, hand-filling handles; the Cirex slabs are slim and flat\u003c\/li\u003e\n\u003cli\u003eYou want titanium scales at this price - the G10 keeps the cost down instead\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Cirex GEO2601B - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the blade dry after every use - M390 is stainless, not stain-proof, and pocket humidity will still speckle it.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional aluminium-oxide stones barely cut this steel.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on a fine ceramic or leather strop - heavy pressure chips a hard apex.\u003c\/li\u003e\n\u003cli\u003eRinse with warm water and mild dish soap when it gets grimy, then dry thoroughly before it goes back in the pocket.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or use the tip as a screwdriver; hard steel trades impact toughness for wear resistance.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel is the number one cause of a sluggish action.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium hardware gall if you overtighten it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533232836805,"sku":"GEO2601B","price":95.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_f994d012-e6d0-49a2-a153-25a7b059854c.jpg?v=1790243687"},{"product_id":"geo-knife-aska-geo2511a","title":"GEO Knife Aska GEO2511A M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-aska\"\u003eGEO Knife Aska\u003c\/a\u003e GEO2511A combines precision engineering with everyday practicality. Featuring a premium Bohler M390 blade—renowned for exceptional edge retention and corrosion resistance—this folding knife delivers uncompromising performance. The 6AL4V titanium handle provides durability while maintaining a lightweight 3.63 oz profile, ideal for EDC enthusiasts. Its ambidextrous crossbar lock ensures secure deployment in any situation, while ergonomic design guarantees confident handling. Drop point blade geometry suits camping, outdoor work, and tactical applications. Designer \u003ca href=\"https:\/\/edcmall.cn\/collections\/fabian-hobbelen-design\"\u003eFabian Hobbelen\u003c\/a\u003e's innovative approach maximizes utility without bulk. Whether you're tackling demanding tasks or carrying daily, this premium knife represents an investment in quality craftsmanship and reliability.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003eModel : GEO2511A\u003cbr\u003eProduct Type : Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 2.8 inch \/ 70mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.3 inch \/ 110 mm\u003cbr\u003eHandle Thickness: 0.46 inch \/ 11.7mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Hand-Rubbed Satin \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003eItem Weight: 3.63 oz \/ 102.8 g\u003cbr\u003e\u003cbr\u003eDesigner : Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511A - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Aska GEO2511A folds Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e performance into a slim crossbar-lock chassis designed by Fabian Hobbelen for \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e. The textured 6AL4V titanium scales and ring pommel keep the knife at 3.63 oz, while the \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e blade - vacuum and cryogenically hardened to 60-62 HRC in a drop point profile - holds its edge through weeks of cardboard, rope and food prep. A phosphor-bronze washer pivot, titanium clip hardware and the fully ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e make deployment silent and fumble-free from either hand, and the whole package sits comfortably inside the premium tier of \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e. Carry it daily as an \u003ca href=\"\/zh-hans\/collections\/edc-all-products\"\u003eEDC\u003c\/a\u003e tool, and it will outlast folders costing twice as much.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511A - Bohler M390 Blade Performance\u003c\/h2\u003e\n\u003cp\u003eM390 is the headline act here. Bohler's third-generation powder-metallurgy \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e mixes high chromium with dense vanadium and molybdenum carbides, so it resists wear like a tool steel while shrugging off corrosion like a true stainless. The trade is sharpening difficulty - budget for diamond or CBN stones - and a modest willingness to chip under prying loads. In exchange you get one of the longest-lasting working edges in the production knife world, heat-treated here with a vacuum and cryogenic cycle for full carbide development.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511A - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention and corrosion resistance\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium scales with grippy CNC texture and a ring pommel for lanyard carry\u003c\/li\u003e\n\u003cli\u003eFully ambidextrous crossbar lock - the strongest folder lock class in production\u003c\/li\u003e\n\u003cli\u003ePhosphor-bronze washer pivot for a smooth, damped, gritty-day action\u003c\/li\u003e\n\u003cli\u003e2.8 inch \/ 70 mm blade in drop point profile, hand-rubbed satin finish, flat grind\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium tip-up pocket clip, pivot cap and screws throughout\u003c\/li\u003e\n\u003cli\u003eLightweight at 102.8 g with a slim 11-12 mm handle profile\u003c\/li\u003e\n\u003cli\u003eFabian Hobbelen design with vacuum + cryogenic heat treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511A - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily package duty\u003c\/strong\u003e - Case-hardened edge life for a work pocket that opens boxes, tape and shrink wrap all week without a touch-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange bag resident\u003c\/strong\u003e - The ambidextrous crossbar action works gloved, and the blackwash or glow finish is easy to find on a bench in low light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen second\u003c\/strong\u003e - The 3.38-inch modified Wharncliffe slices onions, salami and cord cleanly with its full-length straight edge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUrban EDC\u003c\/strong\u003e - A 7.96-inch overall footprint with chamfered edges rides flat and quiet; the titanium or GITD scale keeps it looking dressy at dinner.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector display\u003c\/strong\u003e - Limited to 200 pieces (K1099V11) with Munko Knives design language, copper-tone hardware and quasar-inspired chamfers that photograph beautifully.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the crossbar lock easy to close one-handed?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes - pull the lock bar sideways with your index finger and let the blade fall or guide it shut. Your fingers never cross the blade path, which is why crossbar locks are a favorite with both left- and right-handed users.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow tough is Bohler M390 in daily use?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAt 60-62 HRC M390 holds an edge roughly twice as long as mid-range stainless, but it prefers slicing to prying. Use it within its design envelope and it will go months between touch-ups.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat washers run the blade?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003ePhosphor-bronze washers give the Aska and Cirex a smooth, damped swing that shrugs off pocket grit far better than bare metal-on-metal pivots.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the knife come with a pocket clip?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes - a 6AL4V titanium clip set for tip-up, right-side carry. The Aska adds a ring pommel, so many owners also run it on a lanyard or in a pouch.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the Aska a wharncliffe or a drop point?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe spec sheet lists the Aska as a drop point with a long straight edge - functionally a hybrid that slices like a wharncliffe but keeps a stronger tip. The Cirex is a true clip point.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511A - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRing Pommel\u003c\/strong\u003e\u003cbr\u003eA circular opening milled through the rear of the handle. It accepts a lanyard, acts as a forward-finger index point in an extended grip, and makes the small knife harder to drop.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHand-Rubbed Satin\u003c\/strong\u003e\u003cbr\u003eA blade finish achieved by tumbling (stonewash) or successive hand-lapped abrasives (hand-rubbed satin); both hide carry wear and kill glare better than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511A - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel-first buyers who want top-tier M390 edge retention in a sub-4 oz package\u003c\/li\u003e\n\u003cli\u003eFans of Fabian Hobbelen's ring-pommel design language\u003c\/li\u003e\n\u003cli\u003eLeft-handers - the crossbar lock and washers make it completely ambidextrous\u003c\/li\u003e\n\u003cli\u003eCollectors tracking the GEO Knife lineup; the Aska is the ring-pommel flagship\u003c\/li\u003e\n\u003cli\u003eAnyone who wants a textured titanium handle that stays grippy with wet hands\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry or baton with your EDC - 60-62 HRC M390 chips under lateral abuse\u003c\/li\u003e\n\u003cli\u003eYou want a sub-3-inch legal-carry blade; both models run 2.8-3.5-inch blades\u003c\/li\u003e\n\u003cli\u003eYou hate diamond stones - M390 reprofiling on ordinary aluminum-oxide is miserable\u003c\/li\u003e\n\u003cli\u003eYou want a fidget-first flipper; the crossbar action is smooth but understated\u003c\/li\u003e\n\u003cli\u003eYou need a deep-carry clip (Aska): the titanium clip rides mid-high and the ring adds bulk\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511A - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533445009605,"sku":"GEO2511A","price":231.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_db127fa0-89f1-459a-bc41-932a1fd5af51.jpg?v=1790244128"},{"product_id":"geo-knife-aska-geo2511b","title":"GEO Knife Aska GEO2511B M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-aska\"\u003eGEO Knife Aska\u003c\/a\u003e GEO2511B combines exceptional craftsmanship with premium materials for discerning outdoor enthusiasts. Featuring a Bohler M390 blade—a powder-metallurgical stainless steel offering outstanding edge retention and corrosion resistance—this folding knife delivers superior performance. The 6AL4V titanium handle provides lightweight durability with an ergonomic design ensuring secure grip in any position. With its crossbar lock mechanism, ambidextrous design, and hand-rubbed satin finish, this knife excels as an everyday carry (EDC) tool. At just 3.63 oz, it balances ultralight utility with robust functionality. Ideal for camping, outdoor adventures, and daily use, the GEO Knife represents the pinnacle of tactical folding knife engineering.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003eModel : GEO2511B\u003cbr\u003eProduct Type : Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 2.8 inch \/ 70mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.3 inch \/ 110 mm\u003cbr\u003eHandle Thickness: 0.46 inch \/ 11.7mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Hand-Rubbed Satin \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003eItem Weight:  3.63 oz \/ 102.8 g\u003cbr\u003e\u003cbr\u003eDesigner : Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511B - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Aska GEO2511B by Fabian Hobbelen blends a Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e blade and Gray textured 6AL4V titanium scales with a ringed pommel for lanyards and a positive grip, secured by an ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. A standout \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e design among our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511B - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to hand-rubbed satin. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2511B is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511B - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eGray textured 6AL4V titanium scales milled with a diagonal traction pattern and a ringed pommel for lanyards.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 70 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e102.8 g on the scale - substantial grip with the balance of a much lighter folder.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511B - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 102.8 g and 180 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the ring pommel doubles as a lanyard anchor so it never slips away.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2511B legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511B - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHand-Rubbed Satin\u003c\/strong\u003e\u003cbr\u003eA blade finished by hand on successive abrasive grits so the scratch lines run perfectly lengthwise. It looks dressier than stonewash and shows fewer fingerprints than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRing Pommel\u003c\/strong\u003e\u003cbr\u003eA large finger ring at the base of the handle that anchors a lanyard, extends the grip for small hands and gives the knife a distinctive fixed-blade silhouette.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511B - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect ring-pommel M390 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 102.8 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511B - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533527322821,"sku":"GEO2511B","price":231.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_6ef99249-76f1-4b54-a63e-bf9a1e03eec1.jpg?v=1790244382"},{"product_id":"geo-knife-aska-geo2511c","title":"GEO Knife Aska GEO2511C M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cspan\u003eGEO Knife\u003c\/span\u003e\u003cspan\u003e is a knife that impresses on every level, from its exquisite \u003c\/span\u003e\u003cspan\u003ecrafts\u003c\/span\u003e\u003cspan\u003emanship to high quality, cost-effective for which \u003c\/span\u003e\u003cspan\u003eGEO Knife\u003c\/span\u003e\u003cspan\u003e is renowned. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eDesigned for the outdoors, the campsite, \u003c\/span\u003e\u003cspan\u003et\u003c\/span\u003e\u003cspan\u003ehe ergonomics are outstanding, ensuring an intuitive and secure grip in any position. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCrafted from premium Bohler M390 (M390 is a high-performance stainless steel used in the production of knives and other cutting tools. It is a powder metallurgy steel, which means that it is made by combining multiple types of metal powders into a single billet, which is then heated and compressed to create a solid steel.),  performance stainless steel and integral 6AL4V titanium, the GEO Knife embodies durability and superior performance. T\u003c\/span\u003e\u003cspan\u003ehis stylish Knife takes ultralight utility to the extreme \u003c\/span\u003e\u003cspan\u003eand ideal for daily carrying\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eIf you are looking to add a new EDC knife, rest assured you're making the right choice when you go with an\u003c\/span\u003e\u003cspan\u003e Geo knife.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003eModel : GEO2511C\u003cbr\u003eProduct Type : Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 2.8 inch \/ 70mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.3 inch \/ 110 mm\u003cbr\u003eHandle Thickness: 0.46 inch \/ 11.7mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Hand-Rubbed Satin \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003eItem Weight: 3.63 oz \/ 102.8 g\u003cbr\u003e\u003cbr\u003eDesigner : Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511C - Product Overview\u003c\/h2\u003e\u003cp\u003eThe GEO Knife Aska GEO2511C by Fabian Hobbelen blends a Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e blade and Olive textured 6AL4V titanium scales with a ringed pommel for lanyards and a positive grip, secured by an ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. A standout \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e design among our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eGEO Knife Aska GEO2511C - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to hand-rubbed satin. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2511C is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\u003ch2\u003eGEO Knife Aska GEO2511C - Core Selling Points\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eOlive textured 6AL4V titanium scales milled with a diagonal traction pattern and a ringed pommel for lanyards.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 70 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e102.8 g on the scale - substantial grip with the balance of a much lighter folder.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGEO Knife Aska GEO2511C - Where It Earns Its Pocket Time\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 102.8 g and 180 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the ring pommel doubles as a lanyard anchor so it never slips away.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2511C legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003ch2\u003eGEO Knife Aska GEO2511C - Steel Comparison Table\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHand-Rubbed Satin\u003c\/strong\u003e\u003cbr\u003eA blade finished by hand on successive abrasive grits so the scratch lines run perfectly lengthwise. It looks dressier than stonewash and shows fewer fingerprints than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRing Pommel\u003c\/strong\u003e\u003cbr\u003eA large finger ring at the base of the handle that anchors a lanyard, extends the grip for small hands and gives the knife a distinctive fixed-blade silhouette.\u003cbr\u003e\u003cbr\u003e\u003ch2\u003eGEO Knife Aska GEO2511C - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect ring-pommel M390 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 102.8 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGEO Knife Aska GEO2511C - Care \u0026amp; Maintenance\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GEO Knife Aska GEO2511C\",\"sku\":\"GEO2511C\",\"mpn\":\"GEO2511C\",\"productID\":\"GEO2511C\",\"brand\":{\"@type\":\"Brand\",\"name\":\"GEO Knife\"},\"manufacturer\":\"GEO Knife\",\"material\":\"Bohler M390 blade, titanium\",\"color\":\"titanium\",\"category\":\"Knives \u003e Folding Knives \u003e EDC\",\"description\":\"The GEO Knife Aska GEO2511C by Fabian Hobbelen blends a Bohler \u003ca href=\\\"\/collections\/m390\\\"\u003eM390\u003c\/a\u003e blade and Olive textured 6AL4V titanium scales with a ringed pommel for lanyards and a positive grip, secured by an ambidextrous \u003ca href=\\\"\/collections\/crossbar-lock-knives\\\"\u003ecrossbar lock\u003c\/a\u003e\",\"additionalProperty\":[{\"@type\":\"PropertyValue\",\"name\":\"Model\",\"value\":\"GEO2511C\"},{\"@type\":\"PropertyValue\",\"name\":\"Product Type\",\"value\":\"Folding Knife\"},{\"@type\":\"PropertyValue\",\"name\":\"Brand\",\"value\":\"GEO Knife\"},{\"@type\":\"PropertyValue\",\"name\":\"Model Line\",\"value\":\"Aska\"},{\"@type\":\"PropertyValue\",\"name\":\"Overall Length\",\"value\":\"7.1 inch \/ 180 mm\"},{\"@type\":\"PropertyValue\",\"name\":\"Blade Length\",\"value\":\"2.8 inch \/ 70 mm\"},{\"@type\":\"PropertyValue\",\"name\":\"Handle Length\",\"value\":\"4.3 inch \/ 110 mm\"},{\"@type\":\"PropertyValue\",\"name\":\"Handle Thickness\",\"value\":\"0.46 inch \/ 11.7 mm\"},{\"@type\":\"PropertyValue\",\"name\":\"Blade Width\",\"value\":\"1.0 inch \/ 26 mm\"},{\"@type\":\"PropertyValue\",\"name\":\"Blade Thickness\",\"value\":\"0.1 inch \/ 3.1 mm\"},{\"@type\":\"PropertyValue\",\"name\":\"Blade Material\",\"value\":\"Bohler M390\"},{\"@type\":\"PropertyValue\",\"name\":\"Blade Hardness\",\"value\":\"HRC 60-62\"},{\"@type\":\"PropertyValue\",\"name\":\"Blade Type\",\"value\":\"Drop Point\"},{\"@type\":\"PropertyValue\",\"name\":\"Blade Finish\",\"value\":\"Hand-Rubbed Satin\"},{\"@type\":\"PropertyValue\",\"name\":\"Blade Grind\",\"value\":\"Flat\"},{\"@type\":\"PropertyValue\",\"name\":\"Heat Treatment\",\"value\":\"Vacuum \u0026 Cryogenic\"},{\"@type\":\"PropertyValue\",\"name\":\"Handle Material\",\"value\":\"6AL4V Titanium\"},{\"@type\":\"PropertyValue\",\"name\":\"Lock Type\",\"value\":\"Crossbar\"},{\"@type\":\"PropertyValue\",\"name\":\"Dexterity\",\"value\":\"Ambidextrous\"},{\"@type\":\"PropertyValue\",\"name\":\"Washers\",\"value\":\"Bronze Washers\"},{\"@type\":\"PropertyValue\",\"name\":\"Pocket Clip\",\"value\":\"6AL4V Titanium, Tip-up Right\"},{\"@type\":\"PropertyValue\",\"name\":\"Item Weight\",\"value\":\"3.63 oz \/ 102.8 g\"},{\"@type\":\"PropertyValue\",\"name\":\"Designer\",\"value\":\"Fabian Hobbelen\"},{\"@type\":\"PropertyValue\",\"name\":\"Country of Origin\",\"value\":\"China\"}],\"offers\":{\"@type\":\"Offer\",\"price\":\"231.20\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"itemCondition\":\"https:\/\/schema.org\/NewCondition\"},\"weight\":{\"@type\":\"QuantitativeValue\",\"value\":102.8,\"unitCode\":\"GRM\",\"name\":\"102.8 g (3.63 oz)\"}}\u003c\/script\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533562810565,"sku":"GEO2511C","price":231.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_c62f1667-ff09-44cb-8e1f-482078a5da44.jpg?v=1790244570"},{"product_id":"geo-knife-aska-geo2511d","title":"GEO Knife Aska GEO2511D M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-aska\"\u003eGEO Knife Aska\u003c\/a\u003e GEO2511D delivers premium EDC performance with exquisite craftsmanship. Featuring a Bohler M390 blade—a powder-metallurgical stainless steel renowned for exceptional edge retention and corrosion resistance—this knife excels in demanding conditions. The 6AL4V titanium handle with crossbar lock ensures durability and ambidextrous functionality. At just 3.63 oz, its ultralight design combines superior ergonomics with intuitive grip security for outdoor adventures and daily carry. Hand-rubbed satin finish and flat grind deliver refined aesthetics and reliable performance. Ideal for those seeking a high-quality, cost-effective EDC solution.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003eModel : GEO2511D\u003cbr\u003eProduct Type : Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 2.8 inch \/ 70mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.3 inch \/ 110 mm\u003cbr\u003eHandle Thickness: 0.46 inch \/ 11.7mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Hand-Rubbed Satin \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003eItem Weight: 3.63 oz \/ 102.8 g\u003cbr\u003e\u003cbr\u003eDesigner : Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511D - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Aska GEO2511D by Fabian Hobbelen blends a Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e blade and Purple textured 6AL4V titanium scales with a ringed pommel for lanyards and a positive grip, secured by an ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. A standout \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e design among our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511D - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to hand-rubbed satin. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2511D is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511D - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003ePurple textured 6AL4V titanium scales milled with a diagonal traction pattern and a ringed pommel for lanyards.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 70 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e102.8 g on the scale - substantial grip with the balance of a much lighter folder.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511D - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 102.8 g and 180 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the ring pommel doubles as a lanyard anchor so it never slips away.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2511D legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511D - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHand-Rubbed Satin\u003c\/strong\u003e\u003cbr\u003eA blade finished by hand on successive abrasive grits so the scratch lines run perfectly lengthwise. It looks dressier than stonewash and shows fewer fingerprints than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRing Pommel\u003c\/strong\u003e\u003cbr\u003eA large finger ring at the base of the handle that anchors a lanyard, extends the grip for small hands and gives the knife a distinctive fixed-blade silhouette.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511D - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect ring-pommel M390 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 102.8 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Aska GEO2511D - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533605376197,"sku":"GEO2511D","price":231.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_3692ac2a-3584-460e-98f0-011f3cdc98ae.jpg?v=1790244696"},{"product_id":"geo-knife-strix-geo2510a","title":"GEO Knife Strix GEO2510A M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-strix\"\u003eGEO Knife Strix\u003c\/a\u003e combines exceptional craftsmanship with cutting-edge performance. Featuring a premium Bohler M390 blade—a powder-metallurgical stainless steel renowned for superior edge retention and corrosion resistance—paired with a durable 6AL4V titanium handle, this folding knife delivers reliability for every outdoor adventure. The ambidextrous crossbar lock mechanism ensures secure deployment and intuitive handling. At just 3.7 oz, it's ultralight yet robust, making it the perfect daily carry EDC blade. The hand-rubbed satin finish and drop-point design emphasize both aesthetics and function. Whether for camping, hiking, or everyday utility, the GEO Knife represents an excellent investment in tactical excellence and durability.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp align=\"justify\" class=\"MsoNormal\"\u003eModel: GEO2510A\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 8.4 inch \/ 213mm\u003cbr\u003eBlade Length: 3.6 inch \/ 91mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.8 inch \/ 122 mm\u003cbr\u003eHandle Thickness: 0.46 inch \/ 11.7mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Hand-Rubbed Satin \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium                            \u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003eItem Weight: 3.7 oz \/ 104 g\u003cbr\u003e\u003cbr\u003eDesigner: n.anh_design\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510A - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Strix GEO2510A is a full-size 213 mm EDC folder by n.anh_design: a 91 mm Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop point in hand-rubbed satin, Bead-blasted 6AL4V titanium frame and a light, fast \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. One of the largest \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds in our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e lineup.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510A - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to hand-rubbed satin. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2510A is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510A - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eBead-blasted 6AL4V titanium frame with a flowing ergonomic curve that locks the hand in forward and reverse grips.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 91 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e104 g on the scale - full-size reach at a carry weight most 3-inch folders would envy.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510A - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 104 g and 213 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the flowing ergonomic frame still carries discreetly at 104 g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2510A legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510A - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHand-Rubbed Satin\u003c\/strong\u003e\u003cbr\u003eA blade finished by hand on successive abrasive grits so the scratch lines run perfectly lengthwise. It looks dressier than stonewash and shows fewer fingerprints than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510A - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect full-size M390 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 104 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510A - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533673500869,"sku":"GEO2510A","price":239.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/06_30891871-7c7b-4d1a-9327-d8d25869a409.jpg?v=1790244881"},{"product_id":"geo-knife-strix-geo2510b","title":"GEO Knife Strix GEO2510B M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-strix\"\u003eGEO Knife Strix\u003c\/a\u003e combines exceptional craftsmanship with premium materials for the discerning EDC enthusiast. Featuring a Bohler M390 blade—a powder-metallurgical stainless steel renowned for extraordinary edge retention and corrosion resistance—this folding knife delivers uncompromising performance. The integral 6AL4V titanium handle with crossbar lock ensures durability and confident control in any environment. Meticulously designed ergonomics provide an intuitive, secure grip whether at the campsite or in daily carry. At just 3.7 oz, this ultralight utility blade balances performance with portability. The hand-rubbed satin finish and ambidextrous design reflect GEO's commitment to quality. Choose the GEO Knife for outdoor adventures and everyday reliability.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp align=\"justify\" class=\"MsoNormal\"\u003eModel: GEO2510B\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 8.4 inch \/ 213mm\u003cbr\u003eBlade Length: 3.6 inch \/ 91mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.8 inch \/ 122 mm\u003cbr\u003eHandle Thickness: 0.46 inch \/ 11.7mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Hand-Rubbed Satin \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003eItem Weight:  3.7 oz \/ 104 g\u003cbr\u003e\u003cbr\u003eDesigner: n.anh_design\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510B - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Strix GEO2510B is a full-size 213 mm EDC folder by n.anh_design: a 91 mm Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop point in hand-rubbed satin, Gray stonewashed 6AL4V titanium frame and a light, fast \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. One of the largest \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds in our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e lineup.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510B - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to hand-rubbed satin. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2510B is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510B - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eGray stonewashed 6AL4V titanium frame with a flowing ergonomic curve that locks the hand in forward and reverse grips.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 91 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e104 g on the scale - full-size reach at a carry weight most 3-inch folders would envy.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510B - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 104 g and 213 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the flowing ergonomic frame still carries discreetly at 104 g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2510B legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510B - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHand-Rubbed Satin\u003c\/strong\u003e\u003cbr\u003eA blade finished by hand on successive abrasive grits so the scratch lines run perfectly lengthwise. It looks dressier than stonewash and shows fewer fingerprints than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510B - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect full-size M390 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 104 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510B - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533790482629,"sku":"GEO2510B","price":239.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/04_a7820a61-3e26-42c7-8908-dab109a70cc8.jpg?v=1790245373"},{"product_id":"geo-knife-strix-geo2510c","title":"GEO Knife Strix GEO2510C M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-strix\"\u003eGEO Knife Strix\u003c\/a\u003e delivers exceptional craftsmanship and performance for outdoor enthusiasts and daily carry users. Featuring a premium Böhler M390 blade—a powder-metallurgical stainless steel renowned for exceptional edge retention and corrosion resistance—this knife excels in demanding conditions. The integral 6AL4V titanium handle ensures durability and lightweight utility, while the ergonomic design provides an intuitive, secure grip in any position. With its crossbar lock mechanism, ambidextrous operation, and hand-rubbed satin finish, this 3.6-inch drop point blade combines style with functionality. At just 3.7 ounces, it's the ideal EDC companion for wilderness adventures and everyday use.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003eSpecification\u003c\/h2\u003e\n\u003cp align=\"justify\" class=\"MsoNormal\"\u003eModel: GEO2510C\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 8.4 inch \/ 213mm\u003cbr\u003eBlade Length: 3.6 inch \/ 91mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.8 inch \/ 122 mm\u003cbr\u003eHandle Thickness: 0.46 inch \/ 11.7mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Hand-Rubbed Satin\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003eItem Weight: 3.7 oz \/ 104 g\u003cbr\u003e\u003cbr\u003eDesigner: n.anh_design\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510C - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Strix GEO2510C is a full-size 213 mm EDC folder by n.anh_design: a 91 mm Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop point in hand-rubbed satin, Green-gray stonewashed 6AL4V titanium frame and a light, fast \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. One of the largest \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds in our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e lineup.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510C - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to hand-rubbed satin. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2510C is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510C - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eGreen-gray stonewashed 6AL4V titanium frame with a flowing ergonomic curve that locks the hand in forward and reverse grips.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 91 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e104 g on the scale - full-size reach at a carry weight most 3-inch folders would envy.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510C - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 104 g and 213 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the flowing ergonomic frame still carries discreetly at 104 g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2510C legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510C - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHand-Rubbed Satin\u003c\/strong\u003e\u003cbr\u003eA blade finished by hand on successive abrasive grits so the scratch lines run perfectly lengthwise. It looks dressier than stonewash and shows fewer fingerprints than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510C - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect full-size M390 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 104 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510C - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533823119557,"sku":"GEO2510C","price":239.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/02_0888f7ff-1c36-41b2-85ba-cdbfdadb4eb6.jpg?v=1790245514"},{"product_id":"geo-knife-strix-geo2510d","title":"GEO Knife Strix GEO2510D M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-strix\"\u003eGEO Knife Strix\u003c\/a\u003e combines exceptional craftsmanship with cutting-edge performance. Built around a premium Böhler M390 blade—renowned for extreme wear resistance and edge retention—this knife delivers professional-grade capability. The 6AL4V titanium handle features an ergonomic design ensuring secure, intuitive grip in any condition. The crossbar lock mechanism provides reliable blade security, while ambidextrous operation suits any user. At just 3.7 oz, this ultralight folder transitions seamlessly from campsite to daily carry. Hand-rubbed satin finish, bronze washers, and vacuum-cryogenically treated HRC60-62 hardness create a durable EDC investment. The drop-point blade excels at outdoor tasks requiring precision and durability.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003eModel: GEO2510D\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 8.4 inch \/ 213mm\u003cbr\u003eBlade Length: 3.6 inch \/ 91mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.8 inch \/ 122 mm\u003cbr\u003eHandle Thickness: 0.46 inch \/ 11.7mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Hand-Rubbed Satin \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003eItem Weight: 3.7 oz \/ 104 g\u003cbr\u003e\u003cbr\u003eDesigner: n.anh_design\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510D - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Strix GEO2510D is a full-size 213 mm EDC folder by n.anh_design: a 91 mm Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop point in hand-rubbed satin, Purple anodized 6AL4V titanium frame and a light, fast \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. One of the largest \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds in our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e lineup.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510D - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to hand-rubbed satin. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2510D is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510D - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003ePurple anodized 6AL4V titanium frame with a flowing ergonomic curve that locks the hand in forward and reverse grips.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 91 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e104 g on the scale - full-size reach at a carry weight most 3-inch folders would envy.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510D - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 104 g and 213 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the flowing ergonomic frame still carries discreetly at 104 g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2510D legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510D - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHand-Rubbed Satin\u003c\/strong\u003e\u003cbr\u003eA blade finished by hand on successive abrasive grits so the scratch lines run perfectly lengthwise. It looks dressier than stonewash and shows fewer fingerprints than a mirror polish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510D - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect full-size M390 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 104 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Strix GEO2510D - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533858476229,"sku":"GEO2510D","price":239.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/03_c5b7b336-e2d5-440e-9a28-fd024654dffc.jpg?v=1790245683"},{"product_id":"geo-knife-belluf-geo2508a","title":"GEO Knife Belluf GEO2508A M390 Blade G10 Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-belluf\"\u003eGEO Knife Belluf\u003c\/a\u003e delivers exceptional craftsmanship with its premium Bohler M390 blade and durable G10 handle. This compact folding knife features outstanding ergonomics, providing an intuitive, secure grip for outdoor adventures and daily carry. M390 stainless steel offers industry-leading corrosion resistance and edge retention, though it requires diamond abrasives for sharpening. The crossbar lock ensures reliable blade security, while the lightweight 73.1g design maximizes portability. With a 2.4-inch blade and ambidextrous functionality, this stylish EDC knife combines ultralight utility with superior performance—the ideal choice for serious knife enthusiasts.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2508A\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 5.7 inch \/ 145mm\u003cbr\u003eBlade Length: 2.4 inch \/ 60mm\u003cbr\u003e\u003cbr\u003eHandle Length:  3.3 inch \/ 85mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.1 inch \/ 28 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: G10\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar : Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 2.58 oz \/ 73.1g\u003cbr\u003eDesigner: Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508A - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Belluf GEO2508A is a compact 145 mm gentleman's folder by Fabian Hobbelen, built around a wide Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade, Black G10 scales and a smooth \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e action. See every \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e release and the rest of our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508A - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewashed. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with G10, bronze washers and a 6AL4V titanium clip, the GEO2508A is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508A - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eBlack G10 scales contoured to a 85 mm handle that grips far larger than its footprint.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 60 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e73.1 g on the scale - a shorts-pocket or dress-pants folder that never prints.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508A - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 73.1 g and 145 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the 145 mm closed frame and deep-carry clip vanish under a shirt hem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2508A legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508A - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA tumbling process that bead-blasts the steel into a uniform matte grey. It hides carry scratches and kills glare far better than a satin finish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508A - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 Black G10 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 73.1 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508A - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the blade dry after every use - M390 is stainless, not stain-proof, and pocket humidity will still speckle it.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional aluminium-oxide stones barely cut this steel.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on a fine ceramic or leather strop - heavy pressure chips a hard apex.\u003c\/li\u003e\n\u003cli\u003eRinse with warm water and mild dish soap when it gets grimy, then dry thoroughly before it goes back in the pocket.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or use the tip as a screwdriver; hard steel trades impact toughness for wear resistance.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel is the number one cause of a sluggish action.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium hardware gall if you overtighten it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533897306309,"sku":"GEO2508A","price":87.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_0dc2a1ab-5a92-435b-b2d1-c98eb9fe050c.jpg?v=1790245865"},{"product_id":"geo-knife-belluf-geo2508b","title":"GEO Knife Belluf GEO2508B M390 Blade G10 Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-belluf\"\u003eGEO Knife Belluf\u003c\/a\u003e combines exceptional craftsmanship with advanced materials for the discerning outdoor enthusiast. Featuring a premium Bohler M390 blade—a powder-metallurgical stainless steel renowned for exceptional wear resistance and edge retention—paired with a durable G10 handle, this knife delivers superior performance. The ergonomic design ensures a secure, intuitive grip in any condition, while the crossbar lock mechanism provides reliable blade security. At just 73.1g, this ambidextrous folding knife offers ultralight utility ideal for daily carry and backcountry adventures. Titanium hardware and bronze washers enhance durability and smooth operation. An excellent EDC choice for those demanding quality and reliability.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2508B\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 5.7 inch \/ 145mm\u003cbr\u003eBlade Length: 2.4 inch \/ 60mm\u003cbr\u003e\u003cbr\u003eHandle Length:  3.3 inch \/ 85mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.1 inch \/ 28 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: G10\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar :Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight:  2.58 oz \/ 73.1g\u003cbr\u003eDesigner: Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508B - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Belluf GEO2508B is a compact 145 mm gentleman's folder by Fabian Hobbelen, built around a wide Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade, Purple G10 scales and a smooth \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e action. See every \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e release and the rest of our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508B - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewashed. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with G10, bronze washers and a 6AL4V titanium clip, the GEO2508B is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508B - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003ePurple G10 scales contoured to a 85 mm handle that grips far larger than its footprint.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 60 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e73.1 g on the scale - a shorts-pocket or dress-pants folder that never prints.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508B - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 73.1 g and 145 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the 145 mm closed frame and deep-carry clip vanish under a shirt hem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2508B legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508B - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA tumbling process that bead-blasts the steel into a uniform matte grey. It hides carry scratches and kills glare far better than a satin finish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508B - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 Purple G10 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 73.1 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508B - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the blade dry after every use - M390 is stainless, not stain-proof, and pocket humidity will still speckle it.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional aluminium-oxide stones barely cut this steel.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on a fine ceramic or leather strop - heavy pressure chips a hard apex.\u003c\/li\u003e\n\u003cli\u003eRinse with warm water and mild dish soap when it gets grimy, then dry thoroughly before it goes back in the pocket.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or use the tip as a screwdriver; hard steel trades impact toughness for wear resistance.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel is the number one cause of a sluggish action.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium hardware gall if you overtighten it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50533983256773,"sku":"GEO2508B","price":87.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_eb6a76d2-f255-4f37-bfb0-69ce10f0b97a.jpg?v=1790246032"},{"product_id":"geo-knife-belluf-geo2508c","title":"GEO Knife Belluf GEO2508C M390 Blade G10 Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-belluf\"\u003eGEO Knife Belluf\u003c\/a\u003e combines exceptional craftsmanship with outstanding performance. Featuring a premium M390 stainless steel blade—renowned for wear resistance and edge retention—paired with a durable G10 handle, this folding knife delivers reliability for outdoor enthusiasts and daily carry. The ergonomic design ensures a secure, intuitive grip in any position. With a Crossbar lock mechanism, ambidextrous operation, and lightweight construction at just 2.58 oz, it's the ideal EDC companion. Designed by \u003ca href=\"https:\/\/edcmall.cn\/collections\/fabian-hobbelen-design\"\u003eFabian Hobbelen\u003c\/a\u003e and finished with stonewash, this knife represents the perfect balance of durability, style, and utility for camping, hiking, and everyday adventures.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2508C\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 5.7 inch \/ 145mm\u003cbr\u003eBlade Length: 2.4 inch \/ 60mm\u003cbr\u003e\u003cbr\u003eHandle Length:  3.3 inch \/ 85mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.1 inch \/ 28 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: G10\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar :Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight:  2.58 oz \/ 73.1g\u003cbr\u003eDesigner: Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508C - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Belluf GEO2508C is a compact 145 mm gentleman's folder by Fabian Hobbelen, built around a wide Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade, Teal G10 scales and a smooth \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e action. See every \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e release and the rest of our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508C - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewashed. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with G10, bronze washers and a 6AL4V titanium clip, the GEO2508C is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508C - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eTeal G10 scales contoured to a 85 mm handle that grips far larger than its footprint.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 60 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e73.1 g on the scale - a shorts-pocket or dress-pants folder that never prints.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508C - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 73.1 g and 145 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the 145 mm closed frame and deep-carry clip vanish under a shirt hem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2508C legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508C - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA tumbling process that bead-blasts the steel into a uniform matte grey. It hides carry scratches and kills glare far better than a satin finish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508C - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 Teal G10 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 73.1 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508C - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the blade dry after every use - M390 is stainless, not stain-proof, and pocket humidity will still speckle it.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional aluminium-oxide stones barely cut this steel.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on a fine ceramic or leather strop - heavy pressure chips a hard apex.\u003c\/li\u003e\n\u003cli\u003eRinse with warm water and mild dish soap when it gets grimy, then dry thoroughly before it goes back in the pocket.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or use the tip as a screwdriver; hard steel trades impact toughness for wear resistance.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel is the number one cause of a sluggish action.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium hardware gall if you overtighten it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534016876741,"sku":"GEO2508C","price":87.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_0dc59a9f-58fa-4e9a-b284-4ac169fa9415.jpg?v=1790246571"},{"product_id":"geo-knife-belluf-geo2508d","title":"GEO Knife Belluf GEO2508D M390 Blade G10 Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-belluf\"\u003eGEO Knife Belluf\u003c\/a\u003e combines precision engineering with exceptional practicality. Featuring a premium M390 stainless steel blade, this folding knife delivers outstanding edge retention and corrosion resistance. The drop-point stonewash blade, heat-treated to HRC60-62 hardness, ensures superior cutting performance. With an ergonomic G10 handle and ambidextrous crossbar lock, it provides a secure, intuitive grip for any user. Weighing just 73.1g and measuring 5.7 inches overall, this lightweight utility knife excels as an everyday carry companion. The titanium clip and hardware reflect premium construction quality. Ideal for outdoor enthusiasts and EDC users seeking reliable, durable performance.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2508D\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 5.7 inch \/ 145mm\u003cbr\u003eBlade Length: 2.4 inch \/ 60mm\u003cbr\u003e\u003cbr\u003eHandle Length:  3.3 inch \/ 85mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.1 inch \/ 28 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: G10\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar :Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 2.58 oz \/ 73.1g\u003cbr\u003eDesigner: Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508D - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Belluf GEO2508D is a compact 145 mm gentleman's folder by Fabian Hobbelen, built around a wide Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade, Orange G10 scales and a smooth \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e action. See every \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e release and the rest of our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508D - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewashed. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with G10, bronze washers and a 6AL4V titanium clip, the GEO2508D is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508D - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eOrange G10 scales contoured to a 85 mm handle that grips far larger than its footprint.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 60 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e73.1 g on the scale - a shorts-pocket or dress-pants folder that never prints.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508D - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 73.1 g and 145 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the 145 mm closed frame and deep-carry clip vanish under a shirt hem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2508D legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508D - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA tumbling process that bead-blasts the steel into a uniform matte grey. It hides carry scratches and kills glare far better than a satin finish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508D - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 Orange G10 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 73.1 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508D - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the blade dry after every use - M390 is stainless, not stain-proof, and pocket humidity will still speckle it.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional aluminium-oxide stones barely cut this steel.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on a fine ceramic or leather strop - heavy pressure chips a hard apex.\u003c\/li\u003e\n\u003cli\u003eRinse with warm water and mild dish soap when it gets grimy, then dry thoroughly before it goes back in the pocket.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or use the tip as a screwdriver; hard steel trades impact toughness for wear resistance.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel is the number one cause of a sluggish action.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium hardware gall if you overtighten it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534040568005,"sku":"GEO2508D","price":87.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_e29287e1-c8b3-4902-86af-cabe6ef65c75.jpg?v=1790246723"},{"product_id":"geo-knife-belluf-geo2508h","title":"GEO Knife Belluf GEO2508H M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-belluf\"\u003eGEO Knife Belluf\u003c\/a\u003e GEO2508H combines exceptional craftsmanship with cutting-edge materials. Featuring a premium Bohler M390 stainless steel blade—renowned for superior edge retention and corrosion resistance—this folding knife delivers professional-grade performance. The 6AL4V titanium handle provides lightweight durability with an ambidextrous crossbar lock for secure operation. With a 2.4-inch drop point blade and stonewash finish, it excels for outdoor adventures and daily carry. Precision-engineered with vacuum and cryogenic heat treatment, achieving HRC60-62 hardness, this knife balances utility with elegant design, making it an ideal choice for EDC enthusiasts and outdoor professionals.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2508H\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 5.7 inch \/ 145mm\u003cbr\u003eBlade Length: 2.4 inch \/ 60mm\u003cbr\u003e\u003cbr\u003eHandle Length:  3.3 inch \/ 85mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.1 inch \/ 28 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar : Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 3.01 oz \/ 85.3g\u003cbr\u003eDesigner: Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508H - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Belluf GEO2508H is a compact 145 mm gentleman's folder by Fabian Hobbelen, built around a wide Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade, Bead-textured 6AL4V titanium scales and a smooth \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e action. See every \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e release and the rest of our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508H - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewashed. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2508H is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508H - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eBead-textured 6AL4V titanium scales contoured to a 85 mm handle that grips far larger than its footprint.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 60 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e85.3 g on the scale - a shorts-pocket or dress-pants folder that never prints.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508H - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 85.3 g and 145 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the 145 mm closed frame and deep-carry clip vanish under a shirt hem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2508H legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508H - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA tumbling process that bead-blasts the steel into a uniform matte grey. It hides carry scratches and kills glare far better than a satin finish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508H - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 Titanium builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 85.3 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508H - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534067667141,"sku":"GEO2508H","price":159.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_bb800041-6f1c-4b1a-b6f4-9e2c9a89345a.jpg?v=1790246872"},{"product_id":"geo-knife-belluf-geo2508i","title":"GEO Knife Belluf GEO2508I M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-belluf\"\u003eGEO Knife Belluf\u003c\/a\u003e combines exceptional craftsmanship with premium materials for serious EDC enthusiasts. Featuring a Böhler M390 stainless steel blade—renowned for extraordinary edge retention and corrosion resistance—this folding knife delivers uncompromising performance. The 6AL4V titanium handle with crossbar lock ensures durability and ambidextrous operation, while ergonomic design guarantees a secure grip in any condition. At just 85.3g, this lightweight utility blade excels in outdoor, camping, and daily carry applications. The stonewash drop-point blade (HRC60-62) maintains a razor-sharp edge through extended use, though sharpening requires diamond abrasives due to its extreme hardness. Designed by \u003ca href=\"https:\/\/edcmall.cn\/collections\/fabian-hobbelen-design\"\u003eFabian Hobbelen\u003c\/a\u003e, this precision instrument represents the pinnacle of folding knife engineering.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2508I\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 5.7 inch \/ 145mm\u003cbr\u003eBlade Length: 2.4 inch \/ 60mm\u003cbr\u003e\u003cbr\u003eHandle Length:  3.3 inch \/ 85mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.1 inch \/ 28 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar : Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 3.01 oz \/ 85.3g\u003cbr\u003eDesigner: Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508I - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Belluf GEO2508I is a compact 145 mm gentleman's folder by Fabian Hobbelen, built around a wide Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade, Olive anodized 6AL4V titanium scales and a smooth \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e action. See every \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e release and the rest of our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508I - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewashed. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2508I is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508I - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eOlive anodized 6AL4V titanium scales contoured to a 85 mm handle that grips far larger than its footprint.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 60 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e85.3 g on the scale - a shorts-pocket or dress-pants folder that never prints.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508I - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 85.3 g and 145 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the 145 mm closed frame and deep-carry clip vanish under a shirt hem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2508I legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508I - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA tumbling process that bead-blasts the steel into a uniform matte grey. It hides carry scratches and kills glare far better than a satin finish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508I - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 Titanium builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 85.3 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508I - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534111215813,"sku":"GEO2508I","price":159.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_abeed7fb-b121-446e-8257-b36c14c40c28.jpg?v=1790247021"},{"product_id":"geo-knife-belluf-geo2508j","title":"GEO Knife Belluf GEO2508J M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-belluf\"\u003eGEO Knife Belluf\u003c\/a\u003e combines exceptional craftsmanship with cutting-edge performance. Featuring a premium Böhler M390 blade—a powder-metallurgical stainless steel renowned for razor-sharp edge retention and superior corrosion resistance—this folding knife delivers uncompromising durability. The 6AL4V titanium handle with crossbar lock ensures a secure, ergonomic grip for any situation. At just 3.01 oz, this ambidextrous EDC knife balances lightweight portability with robust functionality. Its stonewash drop-point blade, vacuum and cryogenic heat-treated to HRC60-62, excels in demanding outdoor environments. Designed by \u003ca href=\"https:\/\/edcmall.cn\/collections\/fabian-hobbelen-design\"\u003eFabian Hobbelen\u003c\/a\u003e, the GEO2508J represents the pinnacle of tactical knife engineering—ideal for camping, hunting, and daily carry.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2508J\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 5.7 inch \/ 145mm\u003cbr\u003eBlade Length: 2.4 inch \/ 60mm\u003cbr\u003e\u003cbr\u003eHandle Length:  3.3 inch \/ 85mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.1 inch \/ 28 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar : Titanium\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 3.01 oz \/ 85.3g\u003cbr\u003eDesigner: Fabian Hobbelen\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508J - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Belluf GEO2508J is a compact 145 mm gentleman's folder by Fabian Hobbelen, built around a wide Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade, Purple anodized 6AL4V titanium scales and a smooth \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e action. See every \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e release and the rest of our \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508J - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewashed. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2508J is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508J - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003ePurple anodized 6AL4V titanium scales contoured to a 85 mm handle that grips far larger than its footprint.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 60 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e85.3 g on the scale - a shorts-pocket or dress-pants folder that never prints.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508J - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 85.3 g and 145 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - the 145 mm closed frame and deep-carry clip vanish under a shirt hem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2508J legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508J - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA tumbling process that bead-blasts the steel into a uniform matte grey. It hides carry scratches and kills glare far better than a satin finish.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508J - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 Titanium builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 85.3 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Belluf GEO2508J - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534143787205,"sku":"GEO2508J","price":159.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_e8052ba7-2edf-4a7a-8f17-f298db961e24.jpg?v=1790247185"},{"product_id":"geo-knife-ethereal-cutter-geo2402a","title":"GEO Knife Ethereal Cutter GEO2402A M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-ethereal-cutter\"\u003eGEO Knife Ethereal Cutter\u003c\/a\u003e GEO2402A exemplifies premium EDC design with its M390 stainless steel blade and 6AL4V titanium handle. This 7.1-inch folding knife delivers exceptional edge retention and corrosion resistance, ideal for outdoor enthusiasts and daily carry. The crossbar lock mechanism ensures secure deployment, while ergonomic design provides an intuitive grip in any condition. Weighing just 92 grams, it combines ultralight utility with durability. The stonewash blade finish and ambidextrous construction enhance both aesthetics and functionality. Whether camping or tackling everyday tasks, this precision-engineered knife represents superior craftsmanship and performance.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp align=\"justify\" class=\"MsoNormal\"\u003eModel:GEO2402A\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 3.0 inch \/ 77mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.1 inch \/ 103 mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26 mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap:6AL4V Titanium                           \u003cbr\u003ePivot Collar: Damtanium CamoCarbon inlays\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 3.25 oz \/ 92 g\u003cbr\u003eDesigner: GEO Knife\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402A - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Ethereal Cutter GEO2402A pairs a Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade with Bead-textured 6AL4V titanium scales and an ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. At 180 mm overall and 92 g it disappears in the pocket yet cuts like a fixed blade - browse all \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e and \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402A - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewash blade finish. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2402A is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402A - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eBead-textured 6AL4V titanium scales milled to a 10 mm profile that fills the hand without hot spots.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 77 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e92 g on the scale - light enough for dress trousers, stout enough for work jeans.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402A - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 92 g and 180 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - a low-ride titanium clip and clean lines sit quietly under office dress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2402A legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402A - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402A - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 crossbar-lock Textured Titanium builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 92 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402A - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534205849797,"sku":"GEO2402A","price":159.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/03_b2404d39-d59d-4695-bfd4-3c4f7c6d507c.jpg?v=1790247366"},{"product_id":"geo-knife-ethereal-cutter-geo2402b","title":"GEO Knife Ethereal Cutter GEO2402B M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-ethereal-cutter\"\u003eGEO Knife Ethereal Cutter\u003c\/a\u003e GEO2402B combines exceptional engineering with premium materials for the discerning EDC enthusiast. Featuring a Bohler M390 blade—renowned for exceptional edge retention and corrosion resistance—paired with a lightweight 6AL4V titanium handle, this folding knife delivers superior durability and performance. The drop-point blade, finished in blackwash with a flat grind, maintains a razor-sharp edge for extended use. Designed for ambidextrous operation with a secure crossbar lock mechanism, its ergonomic profile ensures intuitive handling in any environment. At just 92 grams, this ultralight utility knife is ideal for camping, outdoor adventures, or daily carry. Meticulously crafted with attention to detail, the GEO2402B represents an intelligent investment in quality and reliability.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\"\u003eModel:GEO2402B\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 3.0 inch \/ 77mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.1 inch \/ 103mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Blackwash \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium   \u003cbr\u003ePivot Collar: Damtanium CamoCarbon inlays\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 3.25 oz \/ 92 g\u003cbr\u003eDesigner: GEO Knife\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402B - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Ethereal Cutter GEO2402B pairs a Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade with Bronze-anodized 6AL4V titanium scales and an ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. At 180 mm overall and 92 g it disappears in the pocket yet cuts like a fixed blade - browse all \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e and \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402B - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to blackwash blade finish. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2402B is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402B - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eBronze-anodized 6AL4V titanium scales milled to a 10 mm profile that fills the hand without hot spots.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 77 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e92 g on the scale - light enough for dress trousers, stout enough for work jeans.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402B - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 92 g and 180 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - a low-ride titanium clip and clean lines sit quietly under office dress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2402B legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402B - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402B - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 crossbar-lock Bronze Titanium builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 92 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402B - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534246056133,"sku":"GEO2402B","price":159.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/02_edc5acba-750f-42c7-822b-493edcca3131.jpg?v=1790247476"},{"product_id":"geo-knife-ethereal-cutter-geo2402c","title":"GEO Knife Ethereal Cutter GEO2402C M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-ethereal-cutter\"\u003eGEO Knife Ethereal Cutter\u003c\/a\u003e GEO2402C combines exceptional craftsmanship with practical EDC performance. Featuring a premium Bohler M390 blade—a high-performance stainless steel renowned for superior edge retention and corrosion resistance—this folding knife delivers outstanding durability. The 6AL4V titanium handle ensures lightweight strength with an ergonomic design perfect for outdoor adventures and daily carry. Its crossbar lock mechanism provides secure blade deployment, while the ambidextrous design accommodates all users. At just 92 grams, this drop-point blade offers ultralight utility without compromising performance. Whether camping, hiking, or tackling everyday tasks, the GEO Knife impresses with meticulous attention to detail and reliable\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp align=\"justify\" class=\"MsoNormal\"\u003eModel:GEO2402C\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 3.0 inch \/77mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.1 inch \/ 103mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26mm\u003cbr\u003eBlade Thickness: 0.1 inch \/3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Darkwash \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium\u003cbr\u003ePivot Collar: Damtanium CamoCarbon inlays\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 3.25 oz \/ 92 g\u003cbr\u003eDesigner: GEO Knife\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402C - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Ethereal Cutter GEO2402C pairs a Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade with Graphite-gray 6AL4V titanium scales and an ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. At 180 mm overall and 92 g it disappears in the pocket yet cuts like a fixed blade - browse all \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e and \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402C - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to darkwash blade finish. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2402C is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402C - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eGraphite-gray 6AL4V titanium scales milled to a 10 mm profile that fills the hand without hot spots.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 77 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e92 g on the scale - light enough for dress trousers, stout enough for work jeans.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402C - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 92 g and 180 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - a low-ride titanium clip and clean lines sit quietly under office dress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2402C legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402C - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402C - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 crossbar-lock Graphite Titanium builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 92 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402C - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534398951621,"sku":"GEO2402C","price":159.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/02-_Color_Gray.jpg?v=1790248163"},{"product_id":"geo-knife-ethereal-cutter-geo2402d","title":"GEO Knife Ethereal Cutter GEO2402D M390 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-ethereal-cutter\"\u003eGEO Knife Ethereal Cutter\u003c\/a\u003e GEO2402D combines exceptional engineering with practical EDC design. Featuring a premium M390 blade with HRC60-62 hardness, this folding knife delivers outstanding edge retention and corrosion resistance. The 6AL4V titanium handle with crossbar lock mechanism ensures durability and secure operation in any environment. At just 92 grams, it offers ultralight portability without compromising performance. The ambidextrous design accommodates all users, while bronze washers and DLC finishes enhance reliability. With a 3.0-inch blade and optimized ergonomics, this knife excels for camping, outdoor adventures, and daily carry. Built to exacting standards, the GEO2402D represents the perfect balance of craftsmanship, functionality, and value for serious knife enthusiasts.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\"\u003eModel: GEO2402D\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 3.0 inch \/ 77mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.1 inch \/ 103mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: DLC \u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: 6AL4V Titanium\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium (DLC)  \u003cbr\u003ePivot Collar: Damtanium CamoCarbon inlays\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 3.25 oz \/ 92 g\u003cbr\u003eDesigner: GEO Knife\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402D - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Ethereal Cutter GEO2402D pairs a Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade with DLC-coated 6AL4V titanium scales and an ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. At 180 mm overall and 92 g it disappears in the pocket yet cuts like a fixed blade - browse all \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e and \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402D - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to dlc blade finish. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with titanium, bronze washers and a 6AL4V titanium clip, the GEO2402D is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402D - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eDLC-coated 6AL4V titanium scales milled to a 10 mm profile that fills the hand without hot spots.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 77 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e92 g on the scale - light enough for dress trousers, stout enough for work jeans.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402D - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 92 g and 180 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - a low-ride titanium clip and clean lines sit quietly under office dress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2402D legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402D - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402D - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 crossbar-lock DLC Titanium builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 92 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402D - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the titanium scales with a dry microfiber cloth; anodized colour is a surface oxide layer that scuffs under grit.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional stones barely cut Bohler M390.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on leather - heavy pressure chips a hard, thin apex.\u003c\/li\u003e\n\u003cli\u003eClean the titanium with warm water and mild soap only; solvents and bleach discolour anodizing.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or lateral-load the tip; a 3.1 mm blade at 62 HRC chips before it bends.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel causes sluggish, gritty deployment.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium fasteners gall if you overtighten them.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534403834053,"sku":"GEO2402D","price":223.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/02_de654079-0173-40fd-924b-0f94fc5396c2.jpg?v=1790248424"},{"product_id":"geo-knife-ethereal-cutter-geo2402g","title":"GEO Knife Ethereal Cutter GEO2402G M390 Blade G10 Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-ethereal-cutter\"\u003eGEO Knife Ethereal Cutter\u003c\/a\u003e GEO2402G combines exceptional craftsmanship with practical performance. Featuring a premium Bohler M390 blade—a powder-metallurgical stainless steel renowned for edge retention and corrosion resistance—this folding knife delivers reliability in demanding environments. The G10 handle ensures durability and ergonomic comfort, while the crossbar lock mechanism provides secure deployment. At just 2.79 oz, this lightweight EDC knife balances utility with portability. With titanium hardware, stonewash blade finish, and ambidextrous design, it suits both outdoor enthusiasts and daily carry users. The 3.0-inch drop point blade maintains sharpness through extended use, making it an ideal choice for camping, hiking, and tactical applications.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eModel: GEO2402G\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO\u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 3.0 inch \/ 77mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.1 inch \/ 103mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: G10\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material: \u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap: 6AL4V Titanium \u003cbr\u003ePivot Collar :Titanium(Blue)\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: 2.79 oz \/ 79 g\u003cbr\u003eDesigner: GEO Knife\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402G - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Ethereal Cutter GEO2402G pairs a Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade with Teal G10 scales and an ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. At 180 mm overall and 79 g it disappears in the pocket yet cuts like a fixed blade - browse all \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e and \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402G - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewash blade finish. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with G10, bronze washers and a 6AL4V titanium clip, the GEO2402G is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402G - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eTeal G10 scales milled to a 10 mm profile that fills the hand without hot spots.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 77 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e79 g on the scale - light enough for dress trousers, stout enough for work jeans.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402G - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 79 g and 180 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - a low-ride titanium clip and clean lines sit quietly under office dress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2402G legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402G - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCarbon Fiber\u003c\/strong\u003e\u003cbr\u003eWoven carbon strands set in resin. It is the lightest structural handle material in EDC, stiff enough to be milled thin and completely immune to humidity or temperature swings.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eG10\u003c\/strong\u003e\u003cbr\u003eA woven fiberglass cloth soaked in epoxy and compressed under heat. It is light, rigid, essentially weatherproof and grippy even with wet hands.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402G - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 crossbar-lock Teal G10 builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 79 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402G - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the blade dry after every use - M390 is stainless, not stain-proof, and pocket humidity will still speckle it.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional aluminium-oxide stones barely cut this steel.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on a fine ceramic or leather strop - heavy pressure chips a hard apex.\u003c\/li\u003e\n\u003cli\u003eRinse with warm water and mild dish soap when it gets grimy, then dry thoroughly before it goes back in the pocket.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or use the tip as a screwdriver; hard steel trades impact toughness for wear resistance.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel is the number one cause of a sluggish action.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium hardware gall if you overtighten it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534411436229,"sku":"GEO2402G","price":87.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/02_a5c6e28b-4647-4593-abad-14be5a3ec071.jpg?v=1790248651"},{"product_id":"geo-knife-ethereal-cutter-geo2402k","title":"GEO Knife Ethereal Cutter GEO2402K M390 Blade Carbon Fiber Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/edcmall.cn\/collections\/geo-knife-ethereal-cutter\"\u003eGEO Knife Ethereal Cutter\u003c\/a\u003e combines premium craftsmanship with cutting-edge engineering. Featuring a Bohler M390 stainless steel blade—renowned for exceptional wear resistance and edge retention—this folding knife delivers uncompromising performance. The stonewash drop-point blade, hardened to HRC60-62, maintains a razor-sharp edge through demanding tasks. Carbon fiber handles with a crossbar lock mechanism provide ergonomic security and ambidextrous operation. Weighing just 70 grams, the titanium hardware and bronze washers ensure lightweight durability without compromise. At 180mm overall length, this EDC knife excels for outdoor adventures, camping, and daily carry. Precision vacuum and cryogenic heat treatment guarantees reliability. The GEO2402K represents the pinnacle of modern folding knife design.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eM390 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/m390\"\u003eM390\u003c\/a\u003e is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003eModel:GEO2402K\u003cbr\u003eProduct Type: Folding Knife\u003cbr\u003eBrand: GEO \u003cbr\u003eOverall Length: 7.1 inch \/ 180mm\u003cbr\u003eBlade Length: 3.0 inch \/ 77mm\u003cbr\u003e\u003cbr\u003eHandle Length:  4.1 inch \/ 103mm\u003cbr\u003eHandle Thickness: 0.4 inch \/ 10mm\u003cbr\u003eBlade Width: 1.0 inch \/ 26mm\u003cbr\u003eBlade Thickness: 0.1 inch \/ 3.1mm\u003cbr\u003eBlade Material: Bohler M390\u003cbr\u003e\u003cbr\u003eHeat Treatment: Vacuum \u0026amp; Cryogenic\u003cbr\u003eBlade Hardness: HRC60-62\u003cbr\u003eBlade Type: Drop Point\u003cbr\u003eBlade Finish: Stonewash\u003cbr\u003eBlade Grind: Flat\u003cbr\u003e\u003cbr\u003eHandle Material: Carbon fiber\u003cbr\u003eLock Type: Crossbar\u003cbr\u003eDexterity: Ambidextrous\u003cbr\u003eWashers Material:\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eBronze Washers\u003c\/span\u003e\u003cbr\u003eBack Spacer: N\/A\u003cbr\u003e\u003cbr\u003eClip Material: 6AL4V Titanium\u003cbr\u003eClip Position: Tip-up, Right\u003cbr\u003ePivot Cap:6AL4V Titanium                            \u003cbr\u003ePivot Collar: \u003cspan\u003eTitanium(Blue)\u003c\/span\u003e\u003cbr\u003eScrews Material: 6AL4V Titanium\u003cbr\u003e\u003cbr\u003eItem Weight: \u003cspan\u003e2.47 \u003c\/span\u003eoz \/ 70 g\u003cbr\u003eDesigner: GEO Knife\u003cbr\u003eCountry of Origin: China\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402K - Product Overview\u003c\/h2\u003e\n\u003cp\u003eThe GEO Knife Ethereal Cutter GEO2402K pairs a Bohler \u003ca href=\"\/zh-hans\/collections\/m390\"\u003eM390\u003c\/a\u003e drop-point blade with Marbled carbon fiber scales and an ambidextrous \u003ca href=\"\/zh-hans\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e. At 180 mm overall and 70 g it disappears in the pocket yet cuts like a fixed blade - browse all \u003ca href=\"\/zh-hans\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e and \u003ca href=\"\/zh-hans\/collections\/geo-knife\"\u003eGEO Knife\u003c\/a\u003e builds at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402K - Bohler M390 - Super Steel Built to Outcut the Field\u003c\/h2\u003e\n\u003cp\u003eBohler M390 is the reason this knife holds its edge weeks longer than a mid-steel folder. The third-generation powder-metallurgy stainless from Austria carries a dense carbide population that resists abrasive wear at 60-62 HRC, yet its 20 percent chromium matrix still cleans up like a true stainless after food prep or rain. GEO hardens every blade under vacuum and cryogenic treatment, then finishes each one to stonewash blade finish. The trade-offs are honest: M390 wants diamond abrasives when it finally does need sharpening, and it chips rather than bends under prying - treat it like the precision instrument it is and it will outlast several lesser knives. Combined with carbon fiber, bronze washers and a 6AL4V titanium clip, the GEO2402K is built as a buy-once-carry-for-years working tool.\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402K - Core Selling Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBohler M390 blade at 60-62 HRC - exceptional edge retention with genuine stainless corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eAmbidextrous crossbar lock - spring-bar lock is fully ambidextrous and keeps fingers clear of the blade path.\u003c\/li\u003e\n\u003cli\u003eMarbled carbon fiber scales milled to a 10 mm profile that fills the hand without hot spots.\u003c\/li\u003e\n\u003cli\u003eBronze washers at the pivot deliver a smooth, detented opening that will not go gritty with pocket lint.\u003c\/li\u003e\n\u003cli\u003e6AL4V titanium pocket clip, tip-up right carry, rides deep and low in the pocket.\u003c\/li\u003e\n\u003cli\u003eFlat-ground 77 mm drop point handles cardboard, food prep and rope without wedging.\u003c\/li\u003e\n\u003cli\u003e70 g on the scale - light enough for dress trousers, stout enough for work jeans.\u003c\/li\u003e\n\u003cli\u003eVacuum and cryogenic heat treatment for full hardness conversion and long-term dimensional stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402K - Where It Earns Its Pocket Time\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily pocket carry\u003c\/strong\u003e - at 70 g and 180 mm closed-friendly footprint it rides unnoticed until needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarehouse and cardboard duty\u003c\/strong\u003e - M390 edge retention shrugs weeks of box cutting between touch-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamp kitchen and food prep\u003c\/strong\u003e - stainless steel cleans up after acidic food without staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeekend trail and EDC errands\u003c\/strong\u003e - the crossbar lock opens and closes with either hand in any weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk and dress carry\u003c\/strong\u003e - a low-ride titanium clip and clean lines sit quietly under office dress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs Bohler M390 worth it over cheaper steels?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, if you cut daily and hate sharpening. M390 holds a working edge roughly three times longer than 8Cr13MoV-class steels and still resists rust; the cost is slower sharpening on diamond plates.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does a crossbar lock work?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eA spring-loaded bar spans the handle and wedges behind the blade tang when it opens. Pull the bar back with your index or middle finger and the blade folds shut - fully ambidextrous, no liner to flex.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the GEO2402K legal to carry?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFolding knives with a manual crossbar lock are legal to carry in most jurisdictions, but blade-length rules vary - check your local law before carrying.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the titanium handle scratch?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAnodized titanium develops honest carry marks over time; the oxide layer beneath stays corrosion-proof. Stonewashed and dark finishes hide wear best.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat sharpening setup works for M390?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDiamond or CBN stones from 320 to 1000 grit, then a 3000-grit ceramic or leather strop. Conventional aluminium-oxide stones barely cut 60-62 HRC steel.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402K - Steel Comparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSteel\u003c\/th\u003e\n\u003cth\u003eTypical HRC\u003c\/th\u003e\n\u003cth\u003eEdge Retention\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003cth\u003eSharpening Ease\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBohler M390\u003c\/strong\u003e (this knife)\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult (diamond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-20CV\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eExceptional\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eDifficult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPM-S35VN\u003c\/td\u003e\n\u003ctd\u003e58-60\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e59-61\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Easy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair (oil it)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBohler M390\u003c\/strong\u003e\u003cbr\u003eA third-generation powder-metallurgy stainless from Bohler loaded with chromium, vanadium and molybdenum carbides. At 60-62 HRC it holds a working edge longer than almost any other production knife steel and still resists corrosion like a true stainless.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded steel bar that spans the handle and wedges behind the blade tang. It is fully ambidextrous, keeps your fingers out of the blade path on closing and is among the strongest folder locks in production.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e6AL4V Titanium\u003c\/strong\u003e\u003cbr\u003eThe Ti-6Al-4V aerospace alloy used for GEO's scales, clip, pivot cap and screws. It is roughly 45 percent lighter than steel, completely corrosion-proof and takes a hard, wear-resistant anodized surface.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBronze Washers\u003c\/strong\u003e\u003cbr\u003ePhosphor-bronze pivot washers that give a smooth, controlled opening and shrug off pocket grit far better than bare titanium-on-steel contact.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDrop Point\u003c\/strong\u003e\u003cbr\u003eA convex spine that sweeps down toward a strong, controllable point - the default all-round blade profile for hard-use EDC.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlat Grind\u003c\/strong\u003e\u003cbr\u003eBlade flats that taper in a straight line from the spine to the edge. It slices better than a hollow grind and stays much tougher behind the apex.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVacuum and Cryogenic Heat Treatment\u003c\/strong\u003e\u003cbr\u003eA two-stage quench: vacuum hardening prevents decarburization and scale, then a deep cryogenic cycle converts retained austenite so the steel reaches its full hardness and dimensional stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHRC\u003c\/strong\u003e\u003cbr\u003eRockwell Hardness C scale: the industry standard for reporting blade hardness. Higher numbers mean a harder, more wear-resistant edge that is also less forgiving of lateral load.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCarbon Fiber\u003c\/strong\u003e\u003cbr\u003eWoven carbon strands set in resin. It is the lightest structural handle material in EDC, stiff enough to be milled thin and completely immune to humidity or temperature swings.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eG10\u003c\/strong\u003e\u003cbr\u003eA woven fiberglass cloth soaked in epoxy and compressed under heat. It is light, rigid, essentially weatherproof and grippy even with wet hands.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402K - Who Should Buy \/ Who Should Skip\u003c\/h2\u003e\n\u003ch3\u003eWho Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou carry a knife every day and want edge retention measured in weeks, not days.\u003c\/li\u003e\n\u003cli\u003eYou want one ambidextrous folder both left- and right-handed users can run safely.\u003c\/li\u003e\n\u003cli\u003eYou collect M390 crossbar-lock Carbon Fiber builds and want the whole GEO Knife line covered.\u003c\/li\u003e\n\u003cli\u003eYou need a lightweight EDC that still punches above its weight in hard cutting tasks.\u003c\/li\u003e\n\u003cli\u003eYou value titanium hardware, bronze washers and cryogenic heat treat as long-term reliability cues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Skip\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou pry with your knife - M390 chips laterally; a tougher 3V or Nitro-V blade is the better beater.\u003c\/li\u003e\n\u003cli\u003eYou sharpen on budget oil stones only - 60-62 HRC steel needs diamond abrasives.\u003c\/li\u003e\n\u003cli\u003ePrefer heavy over-built knives - at 70 g this folder prioritizes light carry.\u003c\/li\u003e\n\u003cli\u003eYou need a knife for saltwater daily use - rinse discipline is still required despite stainless steel.\u003c\/li\u003e\n\u003cli\u003eYour local law caps blades below this model's length - check the specs before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGEO Knife Ethereal Cutter GEO2402K - Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eWipe the blade dry after every use - M390 is stainless, not stain-proof, and pocket humidity will still speckle it.\u003c\/li\u003e\n\u003cli\u003eOne drop of quality knife oil at the pivot and crossbar contact points monthly, then cycle the action to spread it.\u003c\/li\u003e\n\u003cli\u003eBlow pocket lint out of the handle channel with compressed air before oiling so grit never grinds inside the pivot.\u003c\/li\u003e\n\u003cli\u003eSharpen on diamond or CBN plates; at 60-62 HRC conventional aluminium-oxide stones barely cut this steel.\u003c\/li\u003e\n\u003cli\u003eUse light, consistent strokes and finish on a fine ceramic or leather strop - heavy pressure chips a hard apex.\u003c\/li\u003e\n\u003cli\u003eRinse with warm water and mild dish soap when it gets grimy, then dry thoroughly before it goes back in the pocket.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or use the tip as a screwdriver; hard steel trades impact toughness for wear resistance.\u003c\/li\u003e\n\u003cli\u003eKeep the crossbar track clean; a lint-packed omega spring channel is the number one cause of a sluggish action.\u003c\/li\u003e\n\u003cli\u003eRe-torque clip and body screws with the correct Torx driver - titanium hardware gall if you overtighten it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GEO Knife","offers":[{"title":"Default Title","offer_id":50534438109381,"sku":"GEO2402K","price":135.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/02_fb26d8b9-b0e0-4006-880a-25efa6e7fdfe.jpg?v=1790248824"}],"url":"https:\/\/edcmall.cn\/zh-hans\/collections\/geo-knife.oembed","provider":"EDCMALL","version":"1.0","type":"link"}