Microtech Hera II Mini D/E Signature Halloween Jack-o'-Lantern Aluminum, Satin M390MK OTF Knife by Tony and Sean Marfione (1702M-1HWJLS)
- Hera II Mini D/E Signature Jack-o'-Lantern Aluminum, Satin is a Halloween Limited Edition of one of OTF's best automatic knives. Convenient to carry, while retaining the power of larger models. Designed by Anthony and Sean Marfione from 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 II Mini D/E Signature Jack-o'-Lantern Aluminum, Satin is a Halloween Limited Edition of 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 and Shean Marfione, renowned knifemakers known for their craftsmanship and professionalism.
Hera Series - tactical automatic knives OTF, which features a 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 automatic knives is a milled titanium pocket clip equipped with a smooth rollerball, which allows the knife to slide easily 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). Top-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.
M390MK - thanks to the cooperation of Microtech and Böhler engineers, an exclusive version of M390 steel made only for Microtech was created. The carbon content has been increased and subjected to closer scrutiny thus improving the properties of M390 steel for better edge retention, corrosion resistance and polishing. Martensitic high-performance chromium steel produced by powder metallurgy. Due to its alloy concept, it has extremely high wear resistance and high corrosion resistance. Due to its high wear resistance, it adequately maintains the shape of the edge, so the blade stays sharp for a very long time (requiring minimal maintenance). Another of the advantages is resistance to the formation of “wire” during sharpening. The steel has a high chromium content of 19.0% (Cr) doped with 1.95% carbon (C), vanadium 4.0% (V), and is hardened to 59-61 HRC. This super steel is comparable to Carpenter's CPM 20CV or CTS-204P steels. Manufactured by Böhler Edelstahl in Kapfenberg, Austria.
Blade - machine ground Dagger D/E (Double Edge) type, sharpened on both sides. Finished with an elegant satin finish. The blade was brought out with a high flat grind, providing excellent cutting properties with a central grain . This gives the knife excellent piercing properties while maintaining its strength. 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 perfect precision in 3D technology on CNC milling machines, made of 6061-T6 aluminum, decorated with a Halloween Jack-o'-Lantern graphic motif . The surface texture 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. Slim profile and milled from titanium, the two-position (right/left) pocket clip allows the knife to be carried in tip-down (blade tip down) position. Equipped with a smooth rollerball that allows the knife to slide easily into a pocket without damaging the pocket edges.
Technical data:
Product number: 1702M-1 HWJLS
Product name: Hera® II Mini D/E Signature Jack-o'-Lantern Aluminum, Satin Standard
Overall length: 175.0 mm / 6.90”
Blade length: 74.9 mm / 2.95”
Blade thickness: 2.29 mm / 0.09”
Handle length: 100.0 mm / 3.95”
Handle thickness: 8.9 mm / 0.35”
Weight: 53.9 g / 1.9 oz
Blade material: Böhler M390MK
Blade hardness: n.d.
Blade grind: Flat
Blade finish: Satin
Handle material: 6061-T6 Aluminum
Handle finish color: Jack-o'-Lantern graphic
Backspacer material: 6061-T6 Aluminum
Backspacer color: Halloween Jack-o'-Lantern graphic
Clip: Right/left, 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 & Shean Marfione
Brand: Microtech Knives
Manufacturer: Microtech Knives
Country of origin: USA
Developed by: the Sharg® company