- Black aluminum, black/satin automatic cutter OTF (Out The Front) in D/A (Double Action) mode. Blade made of 3Cr13MoV stainless steel, straight, comfortable aluminum handle. Robust design, reliable operation and reasonable price. A bestseller!

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.
The Dulotec OTF Black Aluminum, Black/Satin 3Cr13MoV K190A-BK is a precision-engineered tool that combines modern aesthetics with functionality. The OTF (Out The Front) mechanism allows the blade to be quickly extended and retracted with a slider, ensuring quick access and safe use. The 3Cr13MoV stainless steel blade is highly corrosion resistant and easy to sharpen. Its symmetrical, double-edged dagger-type blade has a two-tone finish, with the bevels coated in black and the rest satin-finished, which emphasizes the precision of the workmanship. The handle is made of black anodized aluminum and provides a secure grip thanks to its textured surface, which prevents the hand from slipping. The two-position clip allows the knife to be carried in a tip-down position, according to the user's preference. The screw that secures the clip also serves as a window breaker, which increases the tool's functionality in emergency situations. The set includes a nylon case with a DuraFlex buckle for safe transportation of the knife. Robust design, reliable operation and an attractive price make the K190A-BK an excellent choice for users who value quality and functionality.
3Cr13MoV - martensitic tool steel, 13.0% chromium (Cr) content with excellent hardness and strength. By adding 1.0% manganese (Mn), 0.6% nickel (Ni) and 1.0% silicon (Si) to 3Cr13, an improvement in strength and hardness in the range of 52-55 HRC was achieved. Easy to sharpen, widely used in the production of knives, scissors and medical equipment.
Blade - slim and extremely sharp Dagger type with a double-edged symmetrical blade, finished with an effective Two Tone method, the cuts are covered with a black coating, the rest is satin-finished. Plain blade, with a raised flat grind, ensuring excellent cutting properties. There is a false edge at the top of the blade. This gives the knife excellent piercing properties while maintaining high strength. The blade deploys and retracts via a knurled slider that requires a certain amount of force to overcome the resistance of the spring. The opening mechanism allows for smooth opening for both right- and left-handed users.
Handle - made of black anodized aluminum, textured for a better grip. The slim design allows the knife to be stored in any pocket. The two-position clip (right/left) allows the knife to be carried in a tip-down position. The screw that secures the clip also acts as a glass breaker.
Sheath - a DuraFlex nylon carrying case with a buckle is included.
Technical data:
Product number: K190A-BK
Product name: Dulotec OTF Black Aluminum, Black/Satin
Overall length: 235.0 mm / 9.25”
Blade length: 95.0 mm / 3.74”
Blade thickness: 3.2 mm / 0.13”
Handle length: 140.0 mm / 5.51”
Handle thickness: n/a
Weight: 259.0 g / 9.14 oz
Blade material: 3Cr13MoV
Blade hardness: n/a
Blade grinding: Flat
Blade finish: Two Tone, Black / Satin
Handle material: Aluminum
Handle finish color: Black
Backspacer material: Aluminum
Backspacer color: Black
Clip: Right / Left, Tip-down
Clip material: Stainless Steel
Pivot mechanism: n/a
Lock: Slide Lock
Opening type: Automatic, push/pull slider
Additional accessories: None
Designer: Dulotec
Brand: Dulotec
Manufacturer: Dulotec, Bulgaria
Country of origin: P.R.C.
Development: Sharg® company