Microtech Ultratech Gen IV S/E OTF Knife Natural Clear Aluminum, Black M390MK by Tony Marfione (11214-1NC)

Microtech Ultratech Gen IV S/E Natural Clear Aluminum, Black M390MK OTF Folding Knife by Tony Marfione (11214-1NC)

Microtech Ultratech Gen IV 11214-1NC is a classic fourth-generation Ultratech configuration featuring an S/E blade made of Böhler M390MK steel and an aluminum frame with a Natural Clear finish. The black blade contrasts with the light metallic frame, creating a more subdued version of one of Microtech’s most recognizable OTF automatics.

The model has an overall length of 216.92 mm, a blade length of 90.17 mm, and a weight of 102.34 g. The new generation features the Dual-Fuel Drive Train™, the Crud Kutter™ system, a titanium clip with a ceramic ball, and a steel glass breaker. As a result, it retains the classic Ultratech form while incorporating a number of mechanical and functional improvements.

Böhler M390MK – Durability and Corrosion Resistance

The blade is made of Böhler M390MK steel, valued for its high abrasion resistance and excellent corrosion resistance. In everyday use, this means the blade retains its cutting edge for a long time and has good tolerance to moisture. The 3.18 mm thickness ensures sufficient rigidity for a full-size OTF automatic knife.

Drop Point, flat grind, and black finish

The S/E profile features a Drop Point geometry with a single cutting edge and a well-controlled tip. The flat grind facilitates versatile cutting, while the black blade finish creates a striking contrast with the Natural Clear frame. This configuration combines the classic proportions of the Ultratech with a more technical, two-tone aesthetic.

Natural Clear Aluminum and Gen IV Mechanics

The handle is made of 6061-T6 aluminum with a Natural Clear finish. Its design also incorporates the rear section, which serves as a backspacer, eliminating the need for a separate component. The Double Action OTF mechanism utilizes the Dual-Fuel Drive Train™, while the Crud Kutter™ system supports the knife’s operation under everyday conditions.

Key Features at a Glance

• Böhler M390MK – steel with high abrasion resistance.
• Drop Point S/E – versatile blade geometry.
• Flat – flat grind.
• Black – black blade finish.
• Natural Clear 6061-T6 Aluminum – light-colored aluminum frame.
• OTF Double Action – automatic blade deployment and retraction.
• Dual-Fuel Drive Train™ – drive mechanism system.
• Crud Kutter™ – feature supporting the slide mechanism.
• Titanium pocket clip – titanium clip with a ceramic ball.
• Glass breaker – steel functional element.

Technical Specifications

Frequently Asked Questions

Why does the M390MK work well in the Ultratech?

The M390MK retains its sharpness for a long time and offers excellent corrosion resistance. This is a beneficial combination in a switchblade knife designed for everyday carry and frequent use.

How do you sharpen the Drop Point blade of the M390MK?

It’s best to use diamond abrasives or high-quality whetstones with the appropriate grit. When sharpening, maintain a consistent angle along the entire length of a single S/E edge.

How does the OTF Double Action work?

Pushing the slide forward automatically extends the blade, and moving it in the opposite direction automatically retracts it. Operation does not require manually folding the blade.

What sets Gen IV apart from earlier Ultratechs?

The fourth generation features an upgraded Dual-Fuel Drive Train™ system and the Crud Kutter™ solution. It also includes a titanium clip with a ceramic ball and a modified glass breaker.

What does “Natural Clear” mean?

“Natural Clear” is a light finish on the aluminum frame that preserves the material’s metallic character. In this variant, it is paired with a black blade, creating a contrasting, technical configuration.

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