Bestech SENU BT2601B CPM-S90V Blade Titanium Handle Frame Lock Folding Knife

The Bestech SENU BT2601B represents a pinnacle of modern folding knife engineering, combining premium materials with meticulous craftsmanship. Built around a CPM-S90V blade—renowned for exceptional edge retention and corrosion resistance—this knife delivers performance that satisfies demanding users. The stonewash and satin finish provides both aesthetic appeal and practical durability against wear. The titanium frame lock construction ensures reliable blade security with minimal play, while the marble carbon-inlayed titanium handle offers a sophisticated aesthetic without compromising functionality. At 108 grams, the knife achieves an ideal balance between presence and portability. The ceramic ball bearing pivot enables smooth, controlled deployment, while the satin stainless steel pivot and titanium clip maintain the premium build quality throughout. Designed by renowned knife designer Grzegorz Grabarski, every dimension reflects purposeful engineering: the 3.48" blade length provides versatility for detailed work, while the 4.48" closed length ensures pocket-friendly carry. With a blade hardness of 61-63 HRC, this knife maintains its edge through extended use while remaining maintainable. The grey PVD finish adds visual distinction while protecting against fingerprints and corrosion. Whether you're a collector, outdoor enthusiast, or professional, the SENU BT2601B delivers the precision and reliability expected from a high-end tactical folder.

 

SPECIFICATIONS

Blade Material: S90V
Blade Finish: Stonewash and Satin
Handle Material: Titanium with Marble Carbon Inlayed

Handle Color: Grey PVD
Locking Mechanism: Frame Lock
Overall Length: 7.96"/202.3 mm

Closed Length: 4.48"/113.9 mm
Blade Length: 3.48"/88.4 mm
Blade Thickness: 0.13"/3.3 mm

Blade Hardness: 61 - 63 HRC
Pivot: Satin Stainless Steel
Clip: Titanium

Backspacer: Titanium
Ball Bearing: Ceramic
Knife Weight: 108g
Designer: Grzegorz Grabarski

Bestech SENU BT2601B - CPM-S90V Titanium Frame Lock Folder

The Bestech SENU BT2601B is a premium frame lock folder by designer Grzegorz Grabarski, built around a stonewash and satin CPM-S90V blade and a grey pvd titanium handle with marble carbon inlay. Flipper tab, front flipper and a thumb hole give three ways to open the blade, while the solid titanium frame carries the lock. It sits at the top of the Bestech knives catalogue - browse more CPM-S90V knives and the wider EDC all-products range at EDCMALL.

CPM-S90V Blade Steel and Titanium Frame Lock

CPM-S90V is a high-vanadium powder metallurgy stainless that holds an edge longer than almost anything in its class. On the SENU BT2601B the stonewash and satin 3.48 in drop point is paired with a marble carbon in a solid titanium frame - the lock is cut straight out of the handle slab, so there are fewer parts and the whole handle becomes the lock. Compare it with the CPM-S90V lineup, easier-sharpening CPM-S35VN folders and the M390 range in our premium knives collection.

Why the SENU Belongs in Your Pocket

• CPM-S90V blade steel for elite edge retention and wear resistance.
• Grey PVD Titanium Handle with Marble Carbon Inlay - premium materials with the marble carbon contrast.
• Titanium frame lock: fewer parts, stronger lock-up, built into the handle slab itself.
• Three deployment methods: flipper tab, front flipper and thumb hole.
• Ceramic ball bearing pivot for a fast, glassy opening.
• 3.48 in blade in a 7.96 in overall package - full-size EDC reach.
• Only 3.81 oz / 108 g despite the all-metal premium build.
• Titanium clip and backspacer with a satin stainless steel pivot.
• Grzegorz Grabarski design with refined, collector-grade lines.

Best Uses for the SENU

• Executive or gentleman's EDC where edge retention beats weight.
• Collector rotation as a flagship S90V titanium frame lock.
• Heavy daily cutting for users who would rather not sharpen often.
• Camping, hiking and travel food prep with a full-size drop point.
• Gift for a serious knife enthusiast who tracks advanced blade steels.

Frequently Asked Questions

Is CPM-S90V hard to sharpen?
Yes. Its dense vanadium carbides shrug off ordinary stones, so plan on diamond plates or high-quality ceramic abrasives. The payback is an edge that lasts several times longer than a budget stainless.

What is the difference between SENU A and SENU B?
A runs a bead blast and flat satin blade in a stonewashed titanium handle with amber Ultem inlays. B runs a stonewash and satin blade in a grey PVD titanium handle with marble carbon inlays, and carries a small price premium.

How is the SENU different from the BT2601C and D?
Same SENU platform and S90V steel, different handle and blade treatments: C is horizontal satin with Fat Carbon and bronze, D is black PVD with camo carbon. All four are full-size 108 g titanium frame locks.

Can the clip be moved to the other side?
No. The titanium clip is fixed for tip-up right-hand carry, as on the rest of the SENU line.

Is S90V worth the premium over an S35VN knife?
If you prioritise edge retention and wear resistance and accept slower sharpening, yes. S35VN is tougher and easier to maintain; S90V simply stays sharp longer.

CPM-S90V vs. Common Premium Pocket Knife Steels

Steel	Typical HRC	Edge Retention	Corrosion Resistance	Toughness	Sharpening Ease
CPM-S90V (this knife)	60-63	Excellent	Excellent	Fair	Difficult
CPM-S35VN	58-60	Very Good	Very Good	Better	Moderate
M390	60-62	Excellent	Excellent	Good	Difficult
CPM-20CV	59-61	Excellent	Excellent	Fair	Difficult
CPM-154	60-61	Very Good	Good	Good	Moderate
154CM	58-61	Good	Good	Very Good	Moderate
D2 Tool Steel	58-61	Very Good	Fair	Good	Moderate

CPM-S90V is Crucible's high-vanadium powder metallurgy stainless. The dense vanadium carbides give it elite wear resistance and edge retention, but the same carbides make it slower to sharpen and less forgiving of impacts than tougher steels. It is the right choice when cutting miles, not prying, is the job. HRC figures are typical mill ranges.

Glossary of Key Terms

Bestech Knives
A Chinese production knife brand working with global designers to deliver mid-to-premium folders with advanced steels and tight tolerances.

Grzegorz Grabarski
The Polish designer behind the SENU - a titanium frame-lock folder built around long edge retention and clean lines.

CPM-S90V
Crucible's high-vanadium powder metallurgy stainless. Dense vanadium carbides give elite wear resistance and edge retention at the cost of slower sharpening.

Frame Lock
A lock cut directly into the handle's titanium slab; the frame itself springs behind the blade tang. Fewer parts than a liner lock, and stronger because the whole handle is the lock.

Fat Carbon
A layered carbon-fiber and resin composite with metallic or coloured veining; light, rigid and visually striking.

Camo Carbon Fiber
A multi-layer carbon fiber with a camouflage weave pattern, sealed under resin for durability.

PVD Coating
Physical vapour deposition: a hard ceramic layer bonded to the blade in vacuum for corrosion resistance and a black tactical look.

Ceramic Ball Bearings
Hard, friction-free pivot bearings that keep the blade centred and give a fast, glassy opening.

Front Flipper
A small tab on the blade's spine that lets you flick the blade open with the index finger from the top, complementing the standard flipper.

Who Should Buy the SENU

• Knife enthusiasts who want maximum edge retention from CPM-S90V.
• Collectors seeking a Grzegorz Grabarski design in premium materials.
• Users who dislike frequent sharpening and want a long-lasting working edge.
• Titanium frame-lock fans who appreciate a patterned inlay against metal.
• Anyone wanting a full-size EDC folder under 4 oz.

Who Should Skip It

• Users who want an easy-to-sharpen steel; S90V demands diamond abrasives.
• People who pry or chop with their folder; S90V's hardness chips under lateral shock.
• Budget buyers - the SENU is priced for premium steel and materials.
• Left-handed carriers needing a reversible clip or ambidextrous lock.
• Buyers who prefer a lightweight polymer or G10 handle over all-metal titanium.

Care & Maintenance

• Wipe the blade dry after every use; S90V is strongly stainless but pocket sweat still marks bare steel over time.
• Oil the pivot and frame-lock face monthly with a quality knife oil, then cycle the blade to spread it.
• Sharpen on a diamond plate or quality water stone; S90V's dense vanadium carbides defeat ordinary stones.
• Finish on a fine ceramic rod or loaded leather strop with light pressure - heavy passes round the apex.
• Blow pocket lint out of the handle channel and lock recess before oiling so grit never grinds the pivot.
• Wipe anodized or PVD-coated titanium scales with a damp cloth only; abrasive polish dulls the finish.
• Clean the pocket clip and its screws with a soft brush; re-torque them every month or two.
• Never pry, twist or use the tip as a screwdriver; S90V's hardness chips under lateral load.
• Store the knife closed and dry in a pouch or drawer, away from damp leather.