Microtech Hera Hellhound T/E Signature OD Green Aluminum, Stonewashed M390 by Tony and Sean Marfione
- Hera Hellhound T/E Signature OD Green Aluminum, Stonewashed one of the best OTF automatic knives. Convenient to carry, while retaining the power of larger models. Designed by Anthony Marfione knifemaker and owner of Microtech Knives.

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.
Hera Hellhound T/E Signature OD Green Aluminum, Stonewashed one of the best and versatile OTF (Out The Front) automatic knives. Modeled after the iconic Troodon automatic, it is an intermediate link between EDC and tactical models. The over-the-top automatic operates in D/A (Double Action) mode using an opening mechanism that works with great force and power. This model features an excellent fit and superb finish. Designed by Anthony Marfione knifemaker and owner of Microtech Knives.
Hera Series - OTF tactical automatic knives, which feature the perfect combination of utility and aesthetics. Knives with D/E and S/E blades and handles made of anodized aircraft-grade aluminum. A unique feature of Hera automatics is the milled titanium pocket clip equipped with a smooth rollerball, which allows the knife to easily slip into any pocket.
Signature Series - Microtech's elite line of products designed for buyers who are looking for a more exclusive touch to the much-loved Core Series production models (logo with claws on the knife). The highest quality materials and finishes are often used in the production of Signature Series knives. The line also includes themed knives such as Bounty Hunter, Memento Mori and Molon Labe. A distinctive feature is the marking with the dagger logo on the Handle and Anthony Marfione's signature on the clip.
Blade - machine ground Hellhound T/E (Tanto Edge) type, single sided blade with a long line of black grain grooves on both sides of the blade and a distinctive line of holes under the Blade. Finished with a matte Stonewashed sandblasting method. The blade is brought out with a high Flat Grind for excellent cutting qualities. The grain with a series of holes strengthens the blade. As a result, while retaining its strength, the knife has excellent piercing properties. The powerful mechanism of extending/retracting the blade with the help of the moled Thumb Slide, a stepped thumb slide, requires for safety the application of a specific force to overcome the resistance of the spring. The method of opening provides seamless opening for both right and left-handed people.
Handle - made with excellent precision in 3D technology on CNC milling machines, from green anodized 6061-T6 aluminum. There are notches (jimping) on the back and bottom of the Handle for a more secure grip. Slim profile and milled from titanium, the single-position pocket clip allows the knife to be carried in tip-down position (blade tip down). Equipped with a smooth rollerball that allows the knife to slide easily into a pocket without damaging the pocket edges. The clip bears the signature of Anthony Marfione.
Technical data:
Product number: 919-10ODS
Product name: Hera Hellhound T/E Signature OD Green Aluminum, Stonewashed
Overall length: 190.0 mm / 7.5"
Blade length: 79.4 mm / 3.125"
Blade thickness: 2.54 mm / 0.10"
Handle length: 111.0 mm / 4.375"
Handle thickness: 10.2 mm / 0.4"
Weight: 87.9 g / 3.1 oz
Blade material: Böhler M390
Blade hardness: n.d.
Blade grind: Flat
Blade finish: Stonewashed
Handle material: 6061-T6 Aluminum
Handle finish color: OD Green
Backspacer material: 6061-T6 Aluminum
Backspacer color: OD Green
Clip: Right, Tip-down
Clip material: titanium
Pivot mechanism: n.d.
Locking mechanism: Slide Lock
Opening method: Automatic, push/pull Thumb slider
Additional accessories: none
Designer: Tony and Sean Marfione
Brand: Microtech Knives
Manufacturer: Microtech Knives
Country of origin: USA
Developed by: the Sharg® company