KB Knives Lynx Black DLC Titanium / Zircuti, Black DLC M390 by Jonathan Jacobs (KB427C)
- Lynx Black DLC Titanium / Zircuti, Black DLC a sturdy, premium EDC folder designed by Jonathan Jacobs. The blade is made of M390 powder steel, and the handle is a comfortable titanium grip. Safety is ensured by an intuitive crossbar lock.
370,83 €KB Knives Lynx Black DLC Titanium / Zircuti, Black DLC M390 Folding Knife by Jonathan Jacobs (KB427C)
The KB Knives Lynx KB427C is a more exclusive and striking version of the Lynx model designed by Jonathan Jacobs. The black Böhler M390 steel blade is paired with a DLC-coated titanium handle and a decorative Zircuti inlay that breaks up the uniform, dark aesthetic of the design.
The 90.00 mm Clip Point blade features a flat grind and a black DLC finish. It opens manually using thumb studs on both sides, and the Crossbar Lock stabilizes the blade when fully extended.
Böhler M390 and Vacuum-Cryogenic Hardening
The blade is made of Böhler M390 steel, hardened to 60–62 HRC. Vacuum hardening combined with cryogenic treatment promotes high hardness, wear resistance, and stable steel properties during long-term use.
Clip Point, flat grind, and Black DLC
The Clip Point profile provides a slim, precise tip and good control during more delicate tasks. The flat grind supports efficient cutting, and the black DLC coating gives the blade a uniform, technical look that complements the dark finish of the Handle well.
Black DLC Titanium, Zircuti, and Crossbar Lock
The handle is made of titanium and coated with a black DLC finish. Its surface is complemented by an inlay made of Zircuti, which is the most distinctive visual element of this version. The titanium backspacer, clip, pivot cap, and screws all feature a black DLC finish, creating a stylistically cohesive design.
Phosphor bronze washers ensure smooth pivot operation, while the Crossbar Lock stabilizes the blade when open. 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.
- Clip Point — a profile with a precision tip.
- Flat grind — a versatile working geometry.
- Black DLC — a black finish on the blade and titanium frame.
- Zircuti — an decorative inlay that distinguishes the KB427C variant.
- Crossbar Lock — a lock with a crossbar locking mechanism.
- Phosphor Bronze Washers — pivot mounted on phosphor bronze washers.
- Black DLC hardware — a consistent finish on structural components.
- Thumb studs on both sides — manual opening.
Technical data
| Product Number | KB427C |
| Product Name | KB Knives Lynx Black DLC Titanium / Zircuti, Black DLC M390 by Jonathan Jacobs |
| Overall Length | 209.00 mm / 8.23“ |
| Blade Length | 90.00 mm / 3.54” |
| Blade Thickness | 3.50 mm / 0.14“ |
| Handle Length | 119.00 mm / 4.69” |
| Handle Thickness | 13.00 mm / 0.51" |
| Weight | 132.00 g / 4.66 oz |
| Blade material | Böhler M390 |
| Blade Hardness (HRC) | 60–62 HRC |
| Blade Grind | Flat |
| Blade Finish | Black DLC |
| Handle material | Titanium / Zircuti |
| Handle finish color | Black DLC / Zircuti |
| Backspacer material | Titanium |
| Backspacer color | Black DLC |
| Clip | Right-handed, tip-up |
| Backspacer material | Titanium |
| Pivot pin | Phosphor Bronze Washers |
| Lock | Crossbar Lock |
| Opening mechanism | Manual, Thumb Studs |
| Additional Accessories | None |
| Designer | Jonathan Jacobs |
| Brand | KB |
| Manufacturer | Kubey Knife |
| Country of Origin | P.R.C. |
Frequently Asked Questions
How do I care for Böhler M390 steel?
It is recommended to clean the blade regularly and dry it thoroughly. M390 has high corrosion resistance, but proper care helps maintain the blade’s sharpness and the surface’s appearance.
How do I care for the Black DLC coating?
It’s best to use a soft cloth and mild cleaning agents. Avoid harsh abrasives, which can leave marks on the dark surface.
How does the Crossbar Lock work?
The Crossbar Lock uses a crossbar locking mechanism that stabilizes the blade once it’s open. Releasing the lock allows you to fold the knife.
How do you care for the Zircuti inlay?
It’s best to clean the inlay with a soft, slightly damp cloth. Avoid harsh chemicals and abrasives to preserve the distinctive appearance of its surface.
How to maintain the pivot on phosphor bronze washers?
It is a good idea to regularly clean the area around the pivot to remove dust and fine dirt. If necessary, you can use a small amount of a cleaner designed for the pivot mechanism.
Prepared by: Specialists at Sharg® company – Your expert in EDC and cutting tools
