Jakub Wieczorkiewicz (Poltergeist Works) - one of the first Polish knifemakers creating custom folding knives. Simple, sophisticated yet fully usable form is the hallmark of his works.

M390 Microclean® - a martensitic high-performance chrome steel produced by powder metallurgy. Due to its alloy concept, it has extremely high wear resistance and high corrosion resistance. Due to its high wear resistance, it adequately maintains the shape of the edge, so the blade stays sharp for a very long time (requiring minimal maintenance). Another of the advantages is resistance to the formation of "wire" during sharpening. The steel has a high chromium content of 20.0% (Cr) doped with 1.9% carbon (C), vanadium 4.0% (V), and is hardened between 59-61 HRC. This super steel is comparable to Carpenter's CPM 20CV or CTS-204P steels. Manufactured by Böhler Edelstahl in Kapfenberg, Austria.

Bar Lock - a transverse bar that moves horizontally in longitudinal cutouts in the steel side plates of the handle frame. When the knife is opened, the locking bar overlaps the back of the blade from above, preventing its return movement. This beam is pressed down by two springs. Unlocking is done by pulling back the locking bar, the ends of which are accessible through cutouts in the grips on the sides of the Handle grips. In the locked position, the bar presses against the cam surface at the back of the blade, preventing it from opening on its own. The advantages of the Bar Lock are resistance to contamination, practical insensitivity to dynamic loads, ease of operation with both right and left hands, and lightness of operation.

Blade - Tanto type with an elegant Two Tone finish, black PVD-coated slides, the rest horizontally satin-finished. The generous belly extends the length of the cutting edge in relation to the length of the blade converging towards the needle-sharp tip of the knife. A mixed grind is used in this knife, in the rear part it is a high, concave grind for cutting and precision work, the so-called Hollow Ground Primary Bevel. In the front part, we have a Flat Ground tip enhancement grind. Ceramic ball bearings support the opening of the blade with a disk on the back of the blade (thumb disc). The whole is locked with a modern bar lock.

Handle - is two pieces of solid titanium 6AL4V with Copper Foil Carbon Fiber inlays. Chamfered edges of the covers eliminate sharp edges for comfort and improve grip security. Large screws connecting the grips, characteristic of Jacob's designs. The backspacer to which the grips are attached guarantees the rigidity and strength of the entire structure. Simple, solid construction gives you the assurance of many years of use. A single-position, right-handed deep-carry clip allows the knife to be carried in tip-up position, with the tip of the blade upward.

Case - the knife is packed in a zippered nylon soft pouch with the brand's logo for safe carrying and storage of the folder.

Technical data:
Product number: BT2304D
Product name: Cetus Black Bronze Titanium / Carbon Fiber, Black PVD / Satin

Overall length: 228.7 mm / 9.0"
Blade length: 100.1 mm / 3.94"
Blade thickness: 3.8 mm / 0.15"
Handle length: n.d.
Handle thickness: n.d.
Weight: 185.0 g / 6.53 oz

Blade material: M390 Microclean®
Blade hardness: 59-61 HRC
Blade Grind: Mixed, Hollow Grind / Flat Grind
Blade finish: Satin

Handle material: Titanium 6AL4V / Copper Foil Carbon Fiber.
Handle finish color: Black Bronze / Black Copper
Backspacer material: Titanium 6AL4V
Backspacer Color: Black

Clip: Right, Tip-Up
Clip material: Titanium 6AL4V

Pivot mechanism: Caged Ceramic Ball Bearing.
Locking mechanism: Bar Lock
Opening method: Manual, thumb disc
Additional accessories: Pouch

Designer: Poltergeistworks (Jakub Wieczorkiewicz)
Brand name: Bestech
Manufacturer: Bestech Knives
Country of origin: P.R.C

Development: the Sharg® company