Kubey KB Knives Cyrus Black DLC Titanium, Black DLC M390 by Kot Knives (KB387C)
- Cyrus Black DLC Titanium, Black DLC, a modern premium folding knife designed by Kot Knives. The blade is made of M390 powder-coated steel, and it features a comfortable titanium handle. It has a reliable Frame Lock and ceramic ball bearings.
212,19 €This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
KB Knives Cyrus Black DLC Titanium, Black DLC M390 by Kot Knives (KB387C) is a lightweight premium folding knife featuring a Skinner blade, a titanium handle, and a Frame Lock mechanism.
KB Knives Cyrus – a lightweight outdoor folding knife designed by Kot Knives
KB Knives Cyrus Black DLC Titanium, Black DLC M390 by Kot Knives (KB387C) combines a slim design with a Skinner profile blade, designed for controlled curved cuts and precise field tasks. The Kot Knives design features a lightweight titanium handle, a Frame Lock and a consistent Black DLC finish covering the blade, liners, and hardware. Despite its light weight, the model retains a full-size working length, making it well-suited as an outdoor knife, hunting knife, and everyday carry folder.
The blade is made of Böhler M390 powder steel, which has undergone vacuum heat treatment and a cryogenic process. A hardness of 60–62 HRC ensures long-lasting sharpness, while the flat grind provides effective blade guidance through the material. Ceramic ball bearings ensure smooth operation of the mechanism, while the flipper allows for quick, one-handed manual opening. The titanium tip-up clip allows for comfortable carrying of the knife in a right-side pocket, and the included Pouch protects it during transport.
Böhler M390 steel Skinner blade
The Skinner profile features an elongated edge with a distinct curve, which performs well during controlled cuts, work on soft materials, and field tasks requiring prolonged blade contact with the surface. The slender tip allows for precise scoring, while the flat grind reduces resistance and makes it easier to guide the blade through the material. The Black DLC coating gives the blade a uniform, matte finish and increases the surface’s resistance to abrasion.
Böhler M390 is a high-performance powder steel valued for its excellent corrosion resistance, high wear resistance, and long-lasting sharpness. Vacuum treatment and cryogenic cooling help achieve stable material properties at a hardness of 60–62 HRC. The steel is well-suited for the Cyrus model, where the lightweight construction is combined with high cutting performance.
Black DLC Titanium Handle and Frame Lock
The handle, made of Titanium, ensures high rigidity, mechanical strength, and a favorable strength-to-weight ratio. The Black DLC coating gives the surface a cohesive, technical look and harmonizes with the black blade. The titanium backspacer reinforces the rear of the construction, and the identical finish on the clip, pivot, and screws creates a uniform aesthetic for the entire folder.
The Frame Lock uses a spring-loaded section of the titanium handle to stabilize the blade when open. Ceramic ball bearings support smooth blade movement, while the flipper allows for quick deployment with a flick of the index finger. The right-hand, tip-up titanium clip enables discreet carry in a right-hand pocket, and the Pouch facilitates safe storage outside the pocket.
Key features at a glance
- Blade: Böhler M390 steel with a hardness of 60–62 HRC, Skinner profile, flat grind, and Black DLC coating.
- Handle: lightweight titanium construction with a black DLC coating.
- Mechanics: ceramic ball bearings, flipper, and Frame Lock.
- Carrying: right-hand titanium clip, tip-up, and protective pouch.
- Applications: outdoor, hunting, everyday carry, and precision utility tasks.
Technical Specifications
| Product number | KB387C |
| Product name | KB Knives Cyrus Black DLC Titanium, Black DLC M390 by Kot Knives |
| Overall Length | 207.00 mm / 8.15“ |
| Blade Length | 88.00 mm / 3.46” |
| Blade Thickness | 3.20 mm / 0.13“ |
| Handle length | 119.00 mm / 4.69” |
| Handle thickness | 12.00 mm / 0.47" |
| Weight | 84.00 g / 2.97 oz |
| Blade material | Böhler M390 |
| Blade hardness | 60–62 HRC |
| Blade profile | Skinner |
| Blade edge | Flat |
| Blade finish | Black DLC |
| Handle material | Titanium |
| Handle finish color | Black DLC |
| Backspacer material | Titanium |
| Backspacer color | Black DLC |
| Clip | Right, Tip-Up |
| Clip material | Titanium |
| Pivot mechanism | Ceramic ball bearings |
| Lock | Frame Lock |
| Opening method | Manual, flipper |
| Additional accessories | Pouch |
| Designer | Kot Knives |
| Brand | KB Knives |
| Manufacturer | Kubey Knife |
| Country of origin | China |
Frequently Asked Questions
What is the KB Knives Cyrus designed for?
The Cyrus is ideal as a lightweight outdoor and hunting folder, as well as an EDC knife for precise cutting, working with soft materials, cardboard, ropes, and outdoor gear.
How does the Frame Lock work?
Frame Lock uses a spring-loaded part of the titanium handle to support the blade when open. The mechanism ensures high rigidity, simple operation, and a minimal number of moving parts.
How to care for Böhler M390 steel and how to sharpen it?
After use, the blade should be cleaned, thoroughly dried, and periodically coated with a thin layer of oil. For sharpening Böhler M390, it is best to use diamond or CBN wheels, finishing with a fine grit.
What sharpening angle does the manufacturer recommend?
The manufacturer specifies a range of 15°–20°. A lower angle increases cutting aggressiveness, while a value closer to 20° improves edge durability during more demanding use.
How do you open the blade?
The blade is opened using a flipper. Ceramic ball bearings ensure smooth and consistent one-handed deployment of the blade.
Prepared by: Specialists at Sharg® – Your expert in EDC and cutting tools
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