- Nexus Black DLC Titanium, Black DLC Satin a large premium EDC folder designed by Panurin Design. Features a blade of M390 powder steel and a handle crafted from durable titanium. Opens with a flipper, and features the proven Frame Lock mechanism.
0,00 €KB Knives Nexus Black DLC Titanium Folding Knife, Black DLC Satin M390 by Panurin Design (KB442C)
The KB Knives Nexus KB442C is a titanium folding knife designed by Panurin Design, combining a Böhler M390 blade with a black DLC handle and a Frame Lock mechanism featuring ceramic ball bearings. The distinctive Tanto geometry, a more substantial blade, and a flipper create a design with a decidedly technical character.
The 93.00 mm blade features a flat grind and a Black DLC Belt Satin finish. It opens manually using the flipper, and once fully extended, the blade is secured by the Frame Lock.
Böhler M390 and Vacuum-Cryogenic Heat Treatment
The blade is made of Böhler M390 steel, hardened to 60–62 HRC. Vacuum hardening combined with cryogenic treatment was used, which promotes high hardness, wear resistance, and stable steel properties during regular use.
Tanto, flat grind, and Black DLC Belt Satin
The Tanto profile provides a distinctly defined tip and robust geometry at the front of the blade. The flat grind ensures smooth cutting through material, while the Black DLC Belt Satin finish combines a dark DLC coating with the satin texture of the blade’s surface.
Black DLC Titanium, Frame Lock, and Ceramic Bearings
The handle is made of titanium and coated with black DLC. The titanium backspacer maintains the same dark aesthetic, while the clip features a decorative Flame DLC finish that subtly breaks up the uniform look of the design.
Ceramic ball bearings ensure smooth blade movement, while the Frame Lock utilizes a titanium body as the locking element. The clip is positioned on the right side in a tip-up configuration.
Key Features at a Glance
- Böhler M390 — steel with a hardness of 60–62 HRC.
- Vacuum-cryogenic treatment — enhances the steel’s high hardness, wear resistance, and stability.
- Tanto — a profile with a sharply defined front section of the blade.
- Flat Grind — a versatile cutting geometry.
- Black DLC Belt Satin — a black, satin-finished blade.
- Black DLC Titanium — a titanium handle with a dark finish.
- Frame Lock — a lock mechanism utilizing a titanium body.
- Ceramic ball bearings — smooth operation of the mechanism.
- Flipper — quick manual opening of the blade.
- Flame DLC clip — decorative accent on the titanium clip.
Technical Data
| Product Number | KB442C |
| Product Name | KB Knives Nexus Black DLC Titanium, Black DLC Satin M390 by Panurin Design |
| Overall Length | 205.00 mm / 8.07“ |
| Blade length | 93.00 mm / 3.66” |
| Blade thickness | 4.10 mm / 0.16“ |
| Handle Length | 112.00 mm / 4.41” |
| Handle Thickness | 14.00 mm / 0.55" |
| Weight | 115.00 g / 4.06 oz |
| Blade material | Böhler M390 |
| Blade hardness (HRC) | 60–62 HRC |
| Blade grind | Flat |
| Blade finish | Black DLC Belt Satin |
| Handle material | Titanium |
| Handle finish color | Black DLC |
| Backspacer material | Titanium |
| Backspacer color | Black DLC |
| Clip | Right-side, tip-up |
| Clip material | Titanium |
| Pivot axis | Caged Ceramic Ball Bearing |
| Lock | Frame Lock |
| Opening mechanism | Manual, Flipper |
| Additional accessories | None |
| Designer | Panurin Design |
| Brand | KB |
| Manufacturer | Kubey Knife |
| Country of origin | P.R.C. |
Frequently Asked Questions
How do I care for Böhler M390 steel?
It’s a good idea to clean the blade regularly and dry it thoroughly. M390 has high corrosion resistance, but proper care helps maintain the sharpness and aesthetic appearance of the surface for longer.
How do you sharpen the KB Nexus?
High-performance abrasives, especially diamond ones, work well with M390 steel. It’s best to maintain an even edge geometry and guide the sharpener evenly along the entire length of the blade.
What sharpening angle should be used for the KB Nexus?
The recommended sharpening angle range is 15°–20°. This allows you to adjust the edge geometry to your preferred balance between cutting aggressiveness and blade durability.
How does the Frame Lock work?
The Frame Lock uses a section of the titanium handle as a locking element to secure the blade once it is open. Releasing the lock allows the knife to be folded.
How do you maintain ceramic ball bearings?
It’s a good idea to regularly clean the area around the pivot of dust and small debris. If necessary, you can use a small amount of a cleaner designed for knife mechanisms.
Prepared by: Specialists at Sharg® company – Your expert in EDC and cutting tools







