{"product_id":"trivisa-scarab-ultra-bt","title":"Trivisa Scarab Ultra-BT ZDP-189 Blade Titanium Handle Crossbar Lock Folding Knife","description":"\u003cp\u003eThe Trivisa Scarab Ultra-BT combines a compact profile with premium materials for everyday carry and outdoor use. Its 2.99-inch stonewashed ZDP-189 sandwich-steel blade is designed for precise cutting and strong edge retention, while the 65–67 HRC hardness reflects its high-performance character. A titanium handle keeps the knife lightweight at just 2.36 ounces, and ceramic ball bearings support smooth blade movement. The crossbar lock secures the blade in its open position. Designed by the TRIVISA Team, this swedge-style folder measures 6.79 inches overall and folds to 3.8 inches for convenient storage. Suitable for hiking, camping, fishing, hunting, and daily tasks, it calls for careful sharpening and regular maintenance to help protect the blade from chipping and corrosion.\u003c\/p\u003e\n\u003ch2 class=\"product-title\"\u003e\u003cstrong\u003eZDP-189 Blade Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/edcmall.cn\/collections\/zdp-189-steel-blade-knives\"\u003eZDP-189\u003c\/a\u003e is a high-carbon, high-chromium powder metallurgy steel renowned for its extreme hardness, often exceeding 64 HRC, which delivers peerless edge retention and aggressive cutting performance. This performance comes at a cost; its massive carbide volume makes the steel notoriously difficult to sharpen and increases brittleness, posing a risk of chipping under heavy lateral impact. Furthermore, while technically stainless, its high carbon content necessitates diligent maintenance to prevent oxidation, making it a specialized choice for precision cutting tasks rather than rough, heavy-duty utility.\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\u003eDesigner:TRIVISA Team\u003cbr\u003eStyle:Swedge\u003cbr\u003eBlade Material: ZDP-189 Sandwich Steel\u003cbr\u003eBlade Finished:Stonewashed \u003cbr\u003eHandle Material:Titanium Handle\u003cbr\u003eLock Style:Crossbar Lock\u003cbr\u003eHardness:65-67HRC\u003cbr\u003eBearing:Ceramic Ball Bearing\u003c\/p\u003e\n\u003cp\u003eSize:\u003cbr\u003eOverall length-6.79\"(172.4mm)\u003cbr\u003eBlade length-2.99\"(76mm)\u003cbr\u003eClosed length-3.8\"(96.4mm)\u003cbr\u003eBlade width-1''(25.7mm)\u003cbr\u003eBlade thickness-0.08''(2.2mm)\u003cbr\u003eNet Weight:2.36oz(66.8g)\u003c\/p\u003e\n\u003cp\u003eUsage:Outdoor survival,EDC,hunting,fishing, hiking and camping\u003c\/p\u003e\n\u003ch2\u003eTrivisa Scarab Ultra-BT - Stonewashed ZDP-189 Swedge Blade in an Anodized Titanium Frame\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"\/es\/collections\/zdp-189-steel-blade-knives\"\u003eZDP-189\u003c\/a\u003e swedge blade on the Trivisa Scarab Ultra-BT is finished in stonewashed, riding on a black anodized titanium handle with a \u003ca href=\"\/es\/collections\/crossbar-lock-knives\"\u003ecrossbar lock\u003c\/a\u003e and ceramic bearings at 66.8 g (2.36 oz). More \u003ca href=\"\/es\/collections\/folding-knives\"\u003efolding knives\u003c\/a\u003e and \u003ca href=\"\/es\/collections\/edc-all-products\"\u003eEDC gear\u003c\/a\u003e at EDCMALL.\u003c\/p\u003e\n\u003ch2\u003eZDP-189 Sandwich Steel: 65-67 HRC Edge Retention, Honestly Explained\u003c\/h2\u003e\n\u003cp\u003eThis blade runs a hardened ZDP-189 core clad in softer stainless steel: the cutting edge is a 3-percent-carbon powder steel at 65-67 HRC - harder than almost any production folder - while the cladding protects the flats. Edge retention is genuinely exceptional; a week of daily cardboard still shaves. The honest trade: the hard core is brittle under prying and twisting, sharpening wants diamond abrasives, and the high carbon content means wiping the blade dry matters more than it would on M390. The swedge profile and 2.2 mm stock keep the 2.99 inch blade lively, and the whole knife rides at 66.8 g. Compare ZDP-189 with \u003ca href=\"\/es\/collections\/m390\"\u003eM390\u003c\/a\u003e, \u003ca href=\"\/es\/collections\/cpm-s35vn\"\u003eCPM-S35VN\u003c\/a\u003e and \u003ca href=\"\/es\/collections\/d2\"\u003eD2\u003c\/a\u003e in the table below.\u003c\/p\u003e\n\u003ch2\u003eWhy the Trivisa Scarab Belongs in Your Pocket\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2.99 inch ZDP-189 swedge blade at 65-67 HRC on 2.2 mm stock.\u003c\/li\u003e\n\u003cli\u003eStonewashed blade finish - a matte tumble finish that hides carry scratches and kills glare.\u003c\/li\u003e\n\u003cli\u003eBlack Anodized Titanium with a satin-machined, anodized finish.\u003c\/li\u003e\n\u003cli\u003eAnodized thumb stud for fast, one-handed opening.\u003c\/li\u003e\n\u003cli\u003eCrossbar lock: ambidextrous, dirt-tolerant and finger-safe on closing.\u003c\/li\u003e\n\u003cli\u003eCeramic ball bearing pivot that stays glassy for years.\u003c\/li\u003e\n\u003cli\u003eSteel pocket clip, tip-up, and a lanyard-ready rear.\u003c\/li\u003e\n\u003cli\u003e66.8 g (2.36 oz) on a 6.79 inch frame - premium steel without pocket drag.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBest Uses for the Scarab Ultra-BT\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDaily pocket duty: mail, packaging, tags and food prep on a 2.99 inch swedge blade.\u003c\/li\u003e\n\u003cli\u003eOffice and urban carry where the anodized titanium frame reads as jewellery-grade finish.\u003c\/li\u003e\n\u003cli\u003eWeekend hiking and camping where a compact, corrosion-resistant folder earns its pocket spot.\u003c\/li\u003e\n\u003cli\u003eCollection display for the ZDP-189 pedigree and the layered or polished finish.\u003c\/li\u003e\n\u003cli\u003ePrecision slicing where the swedged tip geometry and fine edge excel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat steel is the Scarab blade?\u003c\/strong\u003e\u003cbr\u003eZDP-189 - hardened to 65-67 HRC. It delivers exceptional edge retention, but it is brittle under prying and sharpening wants diamond abrasives; wipe the blade dry and oil it lightly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the knife open and lock?\u003c\/strong\u003e\u003cbr\u003ePress the anodized thumb stud and the ceramic ball bearing pivot swings the blade out one-handed; the crossbar lock wedges behind the tang from above and is fully ambidextrous and finger-safe on closing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the handle made of?\u003c\/strong\u003e\u003cbr\u003eBlack Anodized Titanium - aerospace-grade scales coloured by a surface oxide layer, not paint, with a machined satin finish and a steel pocket clip.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow big is it?\u003c\/strong\u003e\u003cbr\u003e6.79\" (172.4 mm) open, 3.8\" (96.4 mm) closed, 2.99\" (76 mm) blade at 0.08\" (2.2 mm), and 66.8 g (2.36 oz) - a compact titanium folder that disappears in the pocket.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Damascus pattern the same on every blade?\u003c\/strong\u003e\u003cbr\u003eNo - on the Damascus variants the acid-etched layer pattern varies blade to blade, so the knife you receive is visually one of a kind.\u003c\/p\u003e\n\u003ch3\u003eZDP-189 vs. Common Pocket Knife Steels\u003c\/h3\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\"\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\u003eZDP-189 (this blade)\u003c\/td\u003e\n\u003ctd\u003e64-67\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eFair\u003c\/td\u003e\n\u003ctd\u003eFair\u003c\/td\u003e\n\u003ctd\u003eHard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBohler M390\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eFair\u003c\/td\u003e\n\u003ctd\u003eHard\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\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVG-10\u003c\/td\u003e\n\u003ctd\u003e60-62\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD2 Tool Steel\u003c\/td\u003e\n\u003ctd\u003e58-61\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eFair\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14C28N\u003c\/td\u003e\n\u003ctd\u003e58-61\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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eZDP-189 is a Hitachi high-carbon, high-chromium powder steel - roughly 3 percent carbon, the highest of any mainstream blade steel. Hardened here to 65-67 HRC, it holds an aggressive edge longer than almost anything else in a production folder. The honest trade: its huge carbide volume makes it brittle under prying or twisting loads, it is harder to sharpen than mid-range steels (bring diamond abrasives), and its high carbon content means less inherent corrosion protection than M390 - keep it clean and lightly oiled. In this sandwich construction a hardened ZDP-189 core is clad in softer stainless steel, so the cutting edge is pure ZDP-189 while the clad flats and spine stay protected. HRC figures are typical mill ranges, not a guarantee for any single blade.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eGlossary of Key Terms\u003c\/h2\u003e\n\u003cstrong\u003eTrivisa\u003c\/strong\u003e\u003cbr\u003eA Chinese knife brand building anodized-titanium folders around premium steels, with a clean in-house design language.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eScarab\u003c\/strong\u003e\u003cbr\u003eTrivisa's compact swedge-blade folder: a 2.99 inch blade, 6.79 inches open, anodized titanium handle, crossbar lock, ceramic bearings, 66.8 g.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eZDP-189 Steel\u003c\/strong\u003e\u003cbr\u003eHitachi's extreme high-carbon powder steel - about 3 percent carbon and hardened to 64-67 HRC. Peerless edge retention; sharpen with diamond abrasives and keep prying loads off the tip.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSandwich Steel\u003c\/strong\u003e\u003cbr\u003eA hardened cutting core forge-welded or clad between layers of softer stainless steel. The edge stays hard; the cladding protects and adds toughness.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSwedge\u003c\/strong\u003e\u003cbr\u003eA bevel ground along the blade spine. It lightens the profile, sharpens the tip's geometry and adds a distinctive silhouette.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCrossbar Lock\u003c\/strong\u003e\u003cbr\u003eA spring-loaded bar spanning the handle that wedges behind the blade tang. Fully ambidextrous, keeps fingers out of the closing path, and among the strongest folder locks built.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCeramic Ball Bearings\u003c\/strong\u003e\u003cbr\u003eHardened ceramic balls around the pivot. The action stays glassy for years, and ceramic will not rust or flat-spot.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTitanium Handle\u003c\/strong\u003e\u003cbr\u003eAerospace-grade Ti-6Al-4V scales: stronger than steel by weight, immune to corrosion, and warm-feeling in cold weather.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAnodized Titanium\u003c\/strong\u003e\u003cbr\u003eTitanium colour produced by heat or voltage, forming a surface oxide layer. It is not paint - it will not chip or peel.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStonewash Finish\u003c\/strong\u003e\u003cbr\u003eA tumbling process that beads the steel into a uniform matte grey, hiding carry scratches and killing glare far better than satin.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e65-67 HRC\u003c\/strong\u003e\u003cbr\u003eThe Rockwell C hardness band this blade is heat treated to - harder than nearly every production folder. Outstanding edge life; sharpen with diamond abrasives and do not pry.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePocket Clip\u003c\/strong\u003e\u003cbr\u003eA spring steel strip that holds the folded knife at the top of your pocket, tip-up on this model.\u003cbr\u003e\u003cbr\u003e\n\u003ch2\u003eWho Should Buy the Scarab Ultra-BT\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBuyers who want ZDP-189 performance in a sub-3-ounce titanium folder.\u003c\/li\u003e\n\u003cli\u003eAnyone who values an ambidextrous crossbar lock over flipper tactics.\u003c\/li\u003e\n\u003cli\u003eCollectors chasing the colour-coded Scarab lineup (grey, bronze, black frames).\u003c\/li\u003e\n\u003cli\u003eWet-climate carriers who want a folder that shrugs off sweat and rain.\u003c\/li\u003e\n\u003cli\u003eMinimalists who like a clean swedge profile and a compact 3.8 inch closed length.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho Should Skip It\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBudget-first buyers - a 14C28N folder at a third of the price cuts cardboard just as well.\u003c\/li\u003e\n\u003cli\u003eAnyone who wants a fidget-style flipper or button action; this opens on a thumb stud.\u003c\/li\u003e\n\u003cli\u003ePry-prone users - the 65-67 HRC core is a slicer, not a lever.\u003c\/li\u003e\n\u003cli\u003eUsers who need a heavy-duty work blade; 2.2 mm stock is built for slicing, not leverage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCare \u0026amp; Maintenance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWipe the blade dry after every use; ZDP-189's high carbon content makes it less stainless than M390, and the clad edge shoulder can speckle if stored damp.\u003c\/li\u003e\n\u003cli\u003eOne drop of light knife oil at the pivot every two months, then swing the blade a dozen times so oil reaches the ceramic bearing.\u003c\/li\u003e\n\u003cli\u003eSharpen on a diamond plate or CBN stone at 15-18 degrees per side; at 65-67 HRC, ordinary aluminium-oxide stones barely touch the carbides.\u003c\/li\u003e\n\u003cli\u003eWork in light passes with the clad line in mind - you are re-profiling a very hard core, not a soft knife steel.\u003c\/li\u003e\n\u003cli\u003eNever pry, twist or use the tip as a screwdriver; 65-67 HRC steel is outstanding at slicing and brittle under lateral load.\u003c\/li\u003e\n\u003cli\u003eWipe anodized titanium scales with a dry microfibre cloth; the colour is a surface oxide, so keep solvents off it.\u003c\/li\u003e\n\u003cli\u003eBlow lint out of the crossbar-lock channel before oiling; grit under the lock bar is the usual cause of a gritty action.\u003c\/li\u003e\n\u003cli\u003eCheck the body and clip screws every few months with the correct Torx driver; pocket carry can back them out.\u003c\/li\u003e\n\u003cli\u003eStore the knife closed and dry, never sealed in a damp pouch against the steel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Trivisa Scarab Ultra-BT ZDP-189 Blade Titanium Handle Crossbar Lock Folding Knife\",\n  \"sku\": \"Scarab Ultra-BT\",\n  \"mpn\": \"Scarab Ultra-BT\",\n  \"productID\": \"Scarab Ultra-BT\",\n  \"description\": \"Trivisa Scarab Ultra-BT folding knife: 2.99 inch ZDP-189 swedge blade at 65-67 HRC with a stonewashed finish on 2.2 mm stock, black anodized titanium handle, crossbar lock, ceramic ball bearing pivot, anodized thumb stud opening, steel pocket clip, 66.8 g, 6.79 inch overall.\",\n  \"brand\": { \"@type\": \"Brand\", \"name\": \"Trivisa\" },\n  \"manufacturer\": { \"@type\": \"Organization\", \"name\": \"Trivisa\" },\n  \"material\": \"ZDP-189, Titanium\",\n  \"color\": \"Multi\",\n    \"weight\": { \"@type\": \"QuantitativeValue\", \"value\": 66.8, \"unitCode\": \"GRM\" },\n  \"category\": \"Knives\",\n  \"additionalProperty\": [\n      { \"@type\": \"PropertyValue\", \"name\": \"Brand\", \"value\": \"Trivisa\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Model\", \"value\": \"Scarab Ultra-BT\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Model Number\", \"value\": \"Scarab Ultra-BT\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Product Type\", \"value\": \"Folding Knife\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Material\", \"value\": \"ZDP-189\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Handle Material\", \"value\": \"Black Anodized Titanium\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Lock Type\", \"value\": \"Crossbar Lock\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Blade Style\", \"value\": \"Swedge\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Blade Grind\", \"value\": \"Flat\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Blade Finish\", \"value\": \"Stonewashed\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Overall Length\", \"value\": \"6.79\\\" (172.4 mm)\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Blade Length\", \"value\": \"2.99\\\" (76 mm)\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Blade Thickness\", \"value\": \"0.08\\\" (2.2 mm)\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Closed Length\", \"value\": \"3.8\\\" (96.4 mm)\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Weight\", \"value\": \"66.8 g (2.36 oz)\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Designer\", \"value\": \"TRIVISA Team\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Opening\", \"value\": \"Anodized thumb stud\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Carry\", \"value\": \"Steel pocket clip, tip-up\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Hardness\", \"value\": \"65-67 HRC\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"SKU\", \"value\": \"Scarab Ultra-BT\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Price\", \"value\": \"184.69\" },\n      { \"@type\": \"PropertyValue\", \"name\": \"Availability\", \"value\": \"OutOfStock\" }\n  ],\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/edcmall.cn\/products\/trivisa-scarab-ultra-bt\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"184.69\",\n    \"availability\": \"https:\/\/schema.org\/OutOfStock\",\n    \"itemCondition\": \"https:\/\/schema.org\/NewCondition\"\n  }\n}\n\u003c\/script\u003e","brand":"Trivisa Knives","offers":[{"title":"Default Title","offer_id":50883241345221,"sku":null,"price":184.69,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/0699\/4117\/files\/01_8607f173-70e2-41c3-bd3a-64a8e5f7ab09.jpg?v=1793873912","url":"https:\/\/edcmall.cn\/es\/products\/trivisa-scarab-ultra-bt","provider":"EDCMALL","version":"1.0","type":"link"}