Microtech UTX-85 Gen IV S/E Signature OTF Knife Outbreak Aluminium, Outbreak M390MK by Tony Marfione (12314-1OBDS)

Microtech UTX-85 Gen IV S/E Signature Outbreak Aluminum, Outbreak M390MK by Tony Marfione – a compact, next-generation OTF

The Microtech UTX-85 Gen IV S/E Signature Outbreak Aluminum, Outbreak M390MK by Tony Marfione OTF automatic knife (12314-1OBDS) is a compact OTF automatic knife featuring a Single Edge blade made of Böhler M390MK steel, a 6061-T6 aluminum handle, and the distinctive Outbreak finish. The Gen IV design builds upon the UTX-85 platform with a redesigned drive system, improved ergonomics, and solutions that minimize the impact of debris on the mechanism’s operation.

The blade extends and retracts via a single slide in the Double Action OTF system. The redesigned thumb slide provides a larger contact surface for the finger, and the Crud Cutter mechanism helps disperse and remove fine debris from the slide’s operating area. The knife is complemented by a milled titanium clip with a ceramic ball and a glass breaker.

Böhler M390MK and Flat Grind

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

Single Edge and Outbreak Finish

The single-edged Single Edge blade with a smooth Plain Edge is ideal for typical EDC tasks requiring precise cutting. The Outbreak finish covers both the blade and the handle, giving the model the irregular, distinctive look of the Signature Series.

6061-T6 Aluminum, Gen IV Drivetrain, and Crud Cutter

The handle is made of 6061-T6 aluminum and finished in the Outbreak style. Rounded surfaces and milled grip zones improve ergonomics and control, while the Gen IV drivetrain ensures smooth operation of the Double Action OTF mechanism. The Crud Cutter system supports the slide’s operation in conditions where small debris from pockets may enter the mechanism.

Key Features at a Glance

• Böhler M390MK — stainless steel with high corrosion resistance.
• Single Edge, Plain Edge — single-edged blade for precise cutting.
• Flat — flat grind supporting the blade’s functional geometry.
• Outbreak — distinctive Signature Series finish.
• 6061-T6 Aluminum — a lightweight and rigid Handle construction.
• Double Action OTF — blade deployment and retraction with a single slider.
• Gen IV drivetrain + Crud Cutter — redesigned mechanism and system that minimizes the impact of debris.
• Titanium clip, ceramic ball — milled clip with a ceramic ball.

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 a Single Edge blade?

A Plain Edge should be sharpened while maintaining a consistent angle along the entire length of the blade. Near the tip, it’s best to reduce pressure to preserve the blade’s factory geometry.

How does the Double Action OTF mechanism work?

Pushing 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 Gen IV mechanism and the Crud Cutter?

The area around the slide and the blade opening should be regularly cleaned of dust, lint, and small debris. The Crud Cutter helps remove debris from the slide’s operating area, but it does not replace periodic cleaning of the mechanism.

How to safely store an OTF automatic knife?

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 slide mechanism is functioning properly and that there is no debris in the mechanism’s slot.

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