Microtech Scarab II Gen III Executive T/E OTF Knife Natural Clear Aluminum, Black M390MK by Tony Marfione (1177-1NC)

Microtech Scarab II Gen III Executive T/E Natural Clear Aluminum, Black M390MK by Tony Marfione (1177-1NC) – full-size Executive-class OTF automatic knife

The Microtech Scarab II Gen III Executive T/E Natural Clear Aluminum, Black M390MK by Tony Marfione (1177-1NC) is a full-size OTF automatic knife in the D/ A system, designed as a robust, precise, and more elegant variant of the Scarab II Gen III tactical line. The model combines a large blade, a fast automatic mechanism, and a handle with a clean, technical aesthetic Natural Clear. The blade is made of Böhler M390MK steel, features a T/E (Tanto Edge) profile, a flat grind, and a Black finish, creating a design focused on a reinforced tip, effective cutting, and high durability. The handle made of 6061-T6 aluminum, an OTF automatic mechanism with a dual spring system, a Thumb Slide, a right/left clip, tip-down orientation, and a glass breaker highlight the functional character of the Executive Scarab II model.

Böhler M390MK – Microtech powder steel for demanding use

Böhler M390MK is a high-performance powder steel developed for Microtech in collaboration with Böhler, designed with a focus on wear resistance, corrosion resistance, and long-lasting sharpness. In the Scarab II Gen III Executive model, this material performs well when cutting straps, cords, tapes, cardboard, plastics, and technical materials, where edge stability and predictable blade performance are essential. The black finish Black enhances the blade’s tactical character, reduces glare, and contrasts well with the light-colored Handle body.

T/E (Tanto Edge) and flat grind – reinforced tip and cutting control

The T/E (Tanto Edge) profile provides a strong, clearly defined tip, useful for precision work, scoring, and tasks requiring greater tip strength. The single-beveled geometry effectively combines practical performance with the character of a tactical knife, while the flat grind facilitates smooth blade glide through material. Full-length grooves on both sides of the blade visually reinforce the construction and emphasize the technical style of the Scarab II Gen III.

Dual OTF and Thumb Slide Mechanism – Fast Action in a Large Format

The Scarab II Gen III utilizes the D/A OTF automatic mechanism, which allows the blade to be extended and retracted using the same Thumb Slide. This generation features a dual spring system, increasing the mechanism’s operating force and smoothness compared to older designs. The knurled slide with a distinctive “X” pattern in the center requires deliberate pressure, which enhances safety and reduces the risk of accidental activation. The design remains comfortable for both right- and left-handed users.

Natural Clear Aluminum – clean form, rigidity, and ergonomics

The handle, made of 6061-T6 aluminum, was designed with an emphasis on rigidity, durability, and secure handling of the large OTF knife. The Natural Clear finish gives the design a lighter, more technical look, setting this variant apart from darker tactical versions. Jimping on the spine and underside improves grip control, while the slim profile makes it easy to carry despite its full-size format. The sturdy right/left deep-carry, tip-down clip allows for discreet carrying, while the window breaker with a tungsten carbide ball expands the knife’s functionality in emergency situations.

Why choose the Microtech Scarab II Gen III Executive T/E Natural Clear Aluminum?

The Microtech Scarab II Gen III Executive T/E Natural Clear Aluminum is designed for users who expect a large OTF automatic knife with robust mechanics, an elegant finish, and premium materials. Böhler M390MK steel ensures long-lasting edge performance, the T/E (Tanto Edge) profile reinforces the tip, and the D/A OTF mechanism allows for quick one-handed deployment and retraction of the blade. The handle, made of 6061-T6 aluminum, maintains high rigidity and a slim profile; the right/left tip-down clip allows you to customize how you carry it, and the window breaker enhances the model’s utility beyond typical EDC tasks. This is a full-size OTF knife for those who value strength, precision, and Microtech’s signature quality.

Key features at a glance

• Böhler M390MK — high-performance powder-coated steel.
• T/E (Tanto Edge) — reinforced tip and tactical geometry.
• Flat grind — effective blade glide through material.
• Black — dark, technical blade finish.
• D/A OTF — automatic blade deployment and retraction via a slide.
• 6061-T6 Aluminum — rigid, lightweight handle with a Natural Clear finish.

Technical Data

Frequently Asked Questions

How do I care for and sharpen the Böhler M390MK steel in the Scarab II Gen III Executive model?

Böhler M390MK steel should be cleaned and dried after use, especially after contact with moisture, sweat, or debris from cut materials. A diamond sharpener or a high-quality ceramic system works best for sharpening, as powder steel with high wear resistance requires an effective abrasive and a stable angle.

How does the D/A OTF mechanism work in the Microtech Scarab II?

The D/A OTF mechanism allows the blade to be extended and retracted by moving the same Thumb Slide. The blade moves back and forth along the handle axis, so the knife can be operated with one hand without the classic side-to-side opening motion.

What makes the T/E (Tanto Edge) profile stand out?

T/E (Tanto Edge) provides a strong, clearly defined tip and a geometry well-suited for technical tasks. This profile is ideal for scoring, precision work, and cutting materials that require greater control of the blade tip.

What makes the Natural Clear handle stand out?

The Natural Clear finish highlights the technical, bright character of the aluminum handle and gives the knife a more elegant look than typical tactical versions. At the same time, 6061-T6 Aluminum maintains high rigidity, durability, and low weight.

Does the Microtech Scarab II Gen III Executive have a glass breaker?

Yes, the handle features a glass breaker with a tungsten carbide ball. This is a structural element of the knife that expands its functionality in emergency situations, but it is not listed as a separate accessory in the technical data.

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