Tekto A4 Humvee D/E OTF Knife Black Aluminum, Satin P/S D2
- A4 Humvee D/E Black Aluminum, Satin P/S tactical OTF automatic knife from Tekto. Precision contoured aluminum Handle, high quality D2 tool steel blade. Invisible in your pocket, compact and lightweight, ready for action!

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.
A4 Humvee D/E Black Aluminum, Satin P/S is an advanced OTF automatic knife from Tekto, designed for professionals who value reliability and precision. The Handle is made of high quality 6061-T6 aluminum, precisely contoured, providing a secure grip and excellent control of the tool, even in the most demanding conditions. The D2 tool steel blade, highly hardened (58-60 HRC), guarantees unparalleled cutting performance and long-lasting sharpness retention. The automatic blade ejection mechanism, activated by an ergonomically placed button on the side of the Handle, ensures instant and reliable operation. A4 Humvee is not only a tool, but also an expression of the highest quality workmanship and innovative design, which will meet the expectations of even the most demanding users. Its tactical character, combined with elegant design, makes it an indispensable piece of equipment for any professional.
D2 - high-carbon, high-chromium high-speed tool steel heat-treated to 58-60 HRC. With a high chromium content of 13.0% (Cr), it offers greater corrosion resistance than most high-carbon steels. Combines strength, excellent edge holding and easy sharpening. Features high wear resistance due to high carbide content in the microstructure.
Blade - Dagger D/E (Double Edge) type, sharpened on both sides, lower edge partially serrated. Finished with an elegant satin finish. The blade is brought out with a high flat grind (Flat Grind), providing excellent cutting properties. As a result, the knife has excellent piercing properties while maintaining its strength. A strong mechanism for extending / retracting the blade with the help of a moled Thumb Slide, a stepped thumb slide, located on the side of the Handle, requires for safety the application of a specific force to overcome the resistance of the spring. The opening method provides a seamless opening for both right- and left-handed people.
Handle - made with excellent precision in 3D technology on CNC milling machines, from 6061-T6 aluminum. Grooves on the side of the Handle makes the knife non-slip in the hand during use. There are notches (jimping) on the back and bottom of the handle for a more secure grip. The slim profile and milled two-position (right/left) deep-carry clip allow the knife to be carried discreetly in a pocket, in tip-down (blade tip down) position. The clip features the Tekto company logo. The Handle is finished with glass breaker.
Case - the knife is packed in a Velcro velcro-fastened nylon soft pouch for safe carrying and storage of the folder.
Technical data:
Product number: A4R_T6BK_D2SI3_A1
Product name: A4 Humvee D/E Black Aluminum, Satin P/S
Overall length: 237.0 mm / 9.3”
Blade length: 96.0 mm / 3.8”
Blade thickness: n.d.
Handle length: 137.0 mm / 5.4”
Handle thickness: 15.0 mm / 0.59”
Weight: 153.0 g / 5.4 oz
Blade material: D2
Blade hardness: 58-60 HRC
Blade grind: Flat
Blade finish: Satin
Handle material: 6061-T6 Aluminum
Handle finish color: Black
Backspacer material: 6061-T6 Aluminum
Backspacer color: Black
Clip: Right/left, Tip-down
Clip material: Stainless Steel
Pivot mechanism: n.d.
Locking mechanism: Slide Lock
Opening method: Automatic, push/pull Thumb slider
Additional accessories: Pouch
Designer: Tekto Knives
Brand: Tekto Knives
Manufacturer: Tekto Knives
Country of origin: USA
Developed by: the Sharg® company