Bestech DUCI BT2605G CPM-20CV Blade Titanium Handle Frame Lock Folding Knife

Designed by Ostap Hel, the Bestech DUCI BT2605G pairs a compact profile with premium materials for everyday carry and precise utility. Its 1.97-inch CPM-20CV blade features a black PVD finish and 61–62 HRC hardness. Known for excellent wear and corrosion resistance, CPM-20CV helps the edge stay sharp through demanding slicing tasks; its high abrasion resistance can make sharpening more involved. The pink titanium handle provides a distinctive look, while the frame lock secures the blade during use. Open smoothly with the flipper and ceramic ball bearing. Measuring 6.38 inches open and weighing just 54g, this folding knife includes a matching titanium pocket clip and ring, plus black PVD steel hardware. A compact, thoughtfully specified choice for collectors and practical carry alike.

CPM-20CV Blade Introduction

CPM-20CV is a premier powder-metallurgy stainless steel celebrated for its exceptional wear resistance and outstanding corrosion resistance, ranking among the finest modern super steels. Its uniform dispersion of hard vanadium carbides ensures remarkable edge longevity and apex stability during demanding slicing tasks. However, this high abrasion resistance renders resharpening notably laborious, typically requiring diamond or CBN abrasives. Furthermore, while structurally dependable for general utility, its moderate impact toughness leaves delicate edges prone to micro-chipping under excessive lateral torque, heavy batoning, or abusive prying.

SPECIFICATIONS

Blade Material: CPM-20CV
Blade Finish: Black PVD
Handle Material: Titanium, Pink

Overall Length: 6.38"/162mm (including ring)
Closed Length: 4.41"/112mm (including ring)
Blade Length: 1.97"/50mm

Blade Thickness: 0.13"/3.2mm
Blade Hardness: 61 - 62 HRC
Locking Mechanism: Frame Lock

Deployment: Flipper
Clip: Titanium, Pink
Ring: Titanium, Pink

Pivot: Steel, Black PVD
Handle Screw: Steel, Black PVD
Hardware: Steel, Black PVD

Ball Bearing: Ceramic
Knife Weight: 54g
Designer: Ostap Hel

Bestech DUCI BT2605G - CPM-20CV Spear Point in Pink Titanium with a Detachable Ring

The Bestech DUCI BT2605G is Ostap Hel's compact flipper: a 1.97 inch CPM-20CV blade at 61-62 HRC in black PVD, a pink titanium frame lock frame and a push-button detachable karambit ring at 54 g (1.90 oz). More folding knives at EDCMALL.

A Karambit Ring That Actually Comes Off - and Steel That Never Quits

The ring is the story. Press its release button and the karambit ring detaches without tools; snap it back on when you want locked-in pulling cuts on cord, zip ties or packaging. No screws, no lost hardware. Behind it sits a 50 mm modified spear point of CPM-20CV - the M390-class powder steel that holds an edge for weeks and shrugs off corrosion at 61-62 HRC - in a pink anodized titanium frame with a flipper on ceramic bearings. Compare it with CPM-MagnaCut, M390 and CPM-S35VN in the table below.

Why the Bestech DUCI Belongs in Your Pocket

• 1.97 inch CPM-20CV modified spear point at 61-62 HRC, black PVD finish.
• Push-button detachable titanium karambit ring - no tools, no screws.
• Pink anodized titanium frame with an integral frame lock.
• Flipper opening on ceramic ball bearings for a fast, fidget-ready action.
• Milled titanium clip and ring matched to the handle finish, tip-up right.
• Black PVD steel hardware throughout the pivot and screws.
• Just 54 g (1.90 oz) and 4.41" (112 mm) with ring closed - a premium folder in a mini footprint.
• Ostap Hel's signature geometry: clean lines, balanced proportions, zero clutter.

Best Uses for the DUCI BT2605G

• Compact daily carry: mail, packaging, zip ties and cord on a blade that stays sharp for weeks.
• Ring-on retention work: pulling cuts where the knife must not leave the hand.
• Ring-off streamlined pocket carry in strict dress or office environments.
• Sub-2-inch blade rules where a compact profile is a practical advantage.
• Collector display for Ostap Hel's design work and the DUCI ring mechanism.

Frequently Asked Questions

How does the detachable ring work?
The titanium ring is held by an integrated push-button release: press the button and it detaches; press it back onto the mount and it locks. No tools or screws are involved.

Is the DUCI a real karambit?
It is karambit-inspired - the ring gives karambit-style retention for pulling cuts, but the straight modified spear point behaves like a standard premium EDC blade.

What steel is the blade?
CPM-20CV, Crucible's powder-metallurgy stainless in the M390/204P class, hardened to 61-62 HRC with a black PVD finish. Expect the longest time between touch-ups of any steel Bestech uses - and sharpen it on diamond when the day comes.

How big is it?
6.38" (162 mm) with ring open and 4.41" (112 mm) with ring closed with the ring installed, 1.97" (50 mm) blade at 0.13" (3.2 mm), and 54 g (1.90 oz) - smaller than it sounds in every dimension.

Why is the handle pink?
Anodizing: an electrically formed titanium oxide layer, not paint. It will not chip or peel, and it gives the DUCI a look no coated folder can fake.

CPM-20CV vs. Common Pocket Knife Steels

Steel	Typical HRC	Edge Retention	Corrosion Resistance	Toughness	Sharpening Ease
CPM-20CV (this knife)	61-62	Excellent	Excellent	Fair	Hard
CPM-MagnaCut	62-63	Excellent	Excellent	Excellent	Moderate
M390	60-62	Excellent	Very Good	Fair	Hard
CPM-S35VN	59-61	Very Good	Very Good	Good	Moderate
154CM	58-61	Good	Good	Very Good	Moderate
14C28N	58-61	Good	Excellent	Good	Very Easy
8Cr13MoV	57-59	Fair	Good	Good	Very Easy

CPM-20CV is Crucible's powder-metallurgy stainless in the same class as M390 and 204P: roughly 1.9 percent carbon and 20 percent vanadium produce a dense field of hard vanadium carbides. Hardened to 61-62 HRC on the DUCI's 50 mm blade, it holds its edge through weeks of box, cord and packaging duty and shrugs off corrosion despite the enormous carbide volume. The trade is sharpening effort - those same carbides demand a diamond plate or CBN stone - and slightly lower toughness, so do not pry with the tip. HRC figures are typical mill ranges, not a guarantee for any single blade.

Glossary of Key Terms

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

DUCI
Bestech's compact flipper designed by Ostap Hel: a 1.97 inch CPM-20CV blade, pink titanium frame, push-button detachable karambit ring, 54 g. Named from the Chinese for 'stinger'.

Ostap Hel
Polish designer and custom knifemaker known for clean geometric lines, balanced proportions and modern takes on classic folder formats.

CPM-20CV
Crucible's powder-metallurgy stainless in the M390/204P class: about 20 percent vanadium for class-leading edge retention and excellent corrosion resistance at 61-62 HRC.

Modified Spear Point
A symmetrical blade profile positioned between a drop point and a spear point, with the point on the centerline for precise piercing.

Black PVD Coating
Physical vapour deposition: a hard, dark ceramic-thin layer bonded to the steel. It resists scratches and glare; edge wear is cosmetic, not structural.

Karambit Ring
The finger ring at the rear of the handle, borrowed from the Indonesian karambit. It locks the knife into the hand for pulling cuts and secure retention.

Push-Button Ring Release
The DUCI's signature feature: press the release button and the ring detaches without tools; snap it back on when wanted again.

Frame Lock
A lock formed from a section of the handle frame itself, which springs behind the blade tang when open. Stronger than a liner lock and easy to disengage one-handed.

Pink Anodized Titanium
Titanium colour produced by anodizing - a surface oxide layer, not paint. It will not chip or peel, but harsh solvents can dull it.

Ceramic Ball Bearing
Hardened ceramic balls around the pivot. The action stays glassy for years, and ceramic will not rust or flat-spot.

54 Grams
With the ring installed, the DUCI is still under two ounces - a premium steel and titanium folder that disappears in a coin pocket.

Who Should Buy the DUCI BT2605G

• Buyers who want super-steel edge retention in a genuinely small folder.
• Karambit fans who want the retention grip with a straight blade.
• Ostap Hel collectors chasing the full Bestech design run.
• Anyone who carries small and hates sharpening - 20CV is the steel for that.
• Gift buyers looking for a premium, unusual, conversation-starting folder.

Who Should Skip It

• Hard-use buyers - the 50 mm blade and 54 g frame are for precise cutting, not prying.
• Users with large hands; even with the ring this is a two-to-three-finger knife.
• Sharpening novices - 20CV demands diamond abrasives when it finally needs work.
• Anyone who wants a subdued look; the pink anodizing is deliberately bold.

Care & Maintenance

• Wipe the blade dry after every use; 20CV is highly stainless, but the black PVD coating lasts longer when wiped clean.
• One drop of light knife oil at the pivot every two months, then flick the flipper a dozen times so oil reaches the ceramic bearing.
• Press the ring's release button to detach the karambit ring before deep-cleaning the handle channel; snap it back on after.
• Blow lint out of the frame-lock track and around the ring release before oiling; grit under the lock face makes the action gritty.
• Sharpen on a diamond plate or CBN stone at 15-18 degrees per side; 20CV's vanadium carbides defeat ordinary aluminium-oxide stones.
• The pink anodized finish is a surface oxide: wipe the titanium frame with a dry microfibre cloth and keep solvents off it.
• Finish on a loaded strop with light pressure; heavy passes round the apex you just set on a 61-62 HRC edge.
• Check the pivot, clip and body screws every few months with the correct Torx driver; test the ring release action at the same time.
• Never pry, twist or baton with the 50 mm blade - 20CV trades a little toughness for its edge life, and the tip is a cutter, not a lever.