The Bestech DUCI BT2605E, designed by Ostap Hel, is a particularly compact EDC folding knife whose unique feature is its removable rear ring; made from titanium, this karambit-style ring improves the knife’s grip and control. An ingenious push-button mechanism allows it to be removed or fitted instantly and without any tools, enabling the DUCI to be used with or without the ring, depending on preference.

Its small 5 cm blade is made from CPM-20CV, a premium steel offering excellent cutting performance and very good corrosion resistance. In this version, it features a Black PVD finish.
The titanium handle combines Black PVD and Bead Blasted finishes, creating a particularly striking contrast with the Bead Blasted titanium rear ring.

The knife opens via a flip mechanism on ceramic ball bearings, whilst the lock is a Frame Lock.

Weighing in at just 54 gr, the DUCI is a unique and remarkably compact EDC knife, combining high-end materials, a design by Ostap Hel and a particularly ingenious solution for its removable ring.

Technical specifications for the Bestech DUCI BT2605E CPM-20CV Black Titanium:
Overall length: 16.2 cm with ring
Closed length: 11.2 cm with ring
Blade length: 5 cm
Blade thickness: 3.2 mm
Steel: CPM-20CV
Hardness: 61–62 HRC
Blade profile: Drop Point / Modified Spear Point
Blade finish: Black PVD
Handle: titanium
Handle finish: Black PVD + Bead Blasted
Lock: Frame Lock
Opening mechanism: flipper
Pivot: ceramic ball bearings
Ring: Bead-blasted titanium, removable without tools via a release button
Clip: Black PVD-coated titanium
Pivot and screws: Black PVD-coated steel
Weight: 54 g
Designer: Ostap Hel
Reference: BT2605E