Microtech Hera II Mini Bayonet OTF Knife Black Aluminium, Black M390MK by Tony and Sean Marfione (1701M-1T)

Microtech Hera II Mini Bayonet Black Aluminum, Black M390MK by Tony and Sean Marfione – a compact OTF automatic knife with Dual Fuel Drivetrain

The Microtech Hera II Mini Bayonet Black Aluminum, Black M390MK OTF automatic knife by Tony and Sean Marfione (1701M-1T) is a compact OTF automatic knife featuring a Bayonet blade made of Böhler M390MK steel, an aluminum handle with a black finish, and a Double Action OTF mechanism. The Hera II Mini’s design utilizes a redesigned Dual Fuel Drivetrain, screws hidden inside the chassis, and a modified slide mechanism that reduces friction and facilitates the removal of small debris.

The blade extends and retracts with a single thumb slide, allowing for one-handed operation of the mechanism. The redesigned 6AL4V titanium clip with a silicon carbide roller allows the knife to be carried on either the right or left side, and a glass breaker complements the knife’s utilitarian design.

Böhler M390MK and Flat Grind

The blade is made of Böhler M390MK stainless steel, which offers high corrosion resistance and good edge retention. The Flat grind supports effective and controlled cutting while maintaining the functional geometry of the slender Bayonet blade.

Bayonet and Black Tactical

The Bayonet profile gives the blade a symmetrical, dynamic line and a precisely shaped tip. The smooth Plain Edge is ideal for typical EDC tasks, while the Black Tactical finish emphasizes the all-black aesthetic of the 1701M-1T variant.

Black Aluminum, Dual Fuel Drivetrain, and Hidden Hardware

The handle is made of aluminum with a black finish. The Hera II Mini uses internal chassis screws, keeping the exterior surfaces of the Handle clean and visually uncluttered. The redesigned Dual Fuel Drivetrain ensures smooth operation of the mechanism, while the modified button pocket reduces friction and helps minimize the impact of debris on the slider’s movement.

Key Features at a Glance

• Böhler M390MK — stainless steel with high corrosion resistance.
• Bayonet, Plain Edge — a slim profile with a precision tip.
• Flat — a flat grind for effective cutting.
• Black Tactical — a black blade finish.
• Double Action OTF — automatic blade deployment and retraction with a single slider.
• Dual Fuel Drivetrain — redesigned drive mechanism.
• Internal screws — hidden hardware ensuring clean chassis surfaces.
• 6AL4V Titanium clip — redesigned clip with a Silica Carbide roller.

Technical data

Frequently Asked Questions

How do I care for Böhler M390MK steel?

After use, clean the blade and dry it thoroughly. M390MK is highly corrosion-resistant, but before long-term storage, it is recommended to apply a thin layer of a knife-specific preservative.

How do you sharpen the Bayonet blade?

The Plain Edge should be sharpened while maintaining a consistent angle and even pressure. Near the slender tip, it’s best to reduce the pressure to preserve the Bayonet’s factory profile geometry.

How does the Double Action OTF work?

Sliding the thumb slide forward automatically extends the blade, while sliding it in the opposite direction automatically retracts it. Both operations are performed by the same Double Action OTF mechanism.

How do you clean the Dual Fuel Drivetrain mechanism?

The area around the slide and the blade opening should be regularly cleaned of dust, lint, and fine debris. The redesigned button pocket helps reduce friction and remove debris, but it does not replace periodic cleaning of the mechanism.

How do I safely store the Hera II Mini?

The knife should be stored with the blade fully retracted, in a dry place, and out of reach of unauthorized persons. Before putting it away, make sure the mechanism operates smoothly and that there is no debris in the blade slot.

Prepared by: Specialists at Sharg® company – Your expert in EDC and cutting tools