Microtech Dirac D/E OTF Knife Yellow Aluminium, Black M390MK by Tony Marfione (225-1YW)

Microtech Dirac D/E Yellow Aluminum, Black M390MK OTF Folding Knife by Tony Marfione (225-1YW)

The Microtech Dirac 225-1YW is a compact OTF automatic knife with a striking design, combining a yellow aluminum handle with a black, double-edged M390MK blade. Its light weight and total length of 184.15 mm make this model easy to handle, and the Double-Action mechanism allows you to operate the blade using the front slide without changing your grip.

The blade features a Double Edge Dagger profile, a flat grind, and a black finish. The double-sided tip-down clip makes it easy to adjust the carrying style, and the aluminum body also forms the rear section that serves as a backspacer, ensuring the design maintains a compact, unified form.

M390MK – High Wear Resistance

M390MK was developed for Microtech based on M390 steel and offers high resistance to abrasion and corrosion. This is particularly important for a double-edged blade, as both edges maintain good cutting performance during use. The steel is also well-suited to the compact OTF format designed for everyday carry.

Double Edge Dagger and Black Finish

The Double Edge Dagger features two cutting edges and a centrally positioned point. The flat grind maintains the blade’s versatile geometry, while the black finish creates a stark contrast with the yellow Handle and gives the entire model a more technical, distinctive look.

Yellow Aluminum and Front OTF Mechanism

The handle is made of yellow aluminum, which improves the knife’s visibility and clearly distinguishes this variant from the more subdued versions of the Dira. The Double-Action OTF mechanism is operated by a front slide, and the steel clip can be mounted on either side of the handle in a tip-down configuration.

Key Features at a Glance

• M390MK – steel with high wear resistance.
• Double Edge Dagger – symmetrical, double-edged blade.
• Flat – flat grind.
• Black – black blade finish.
• Yellow Aluminum – highly visible aluminum handle.
• Double-Action OTF – automatic opening in both directions.
• Front Slider – slider on the front of the frame.
• 65.20 g – compact, lightweight design.
• Tip-Down Clip – reversible steel clip.
• USA – country of manufacture.

Technical data

Frequently Asked Questions

What are the advantages of the M390MK?

The M390MK offers high resistance to wear and corrosion, making it well-suited for a knife used regularly. The material retains its edge properties for a long time and does not require frequent sharpening for typical EDC tasks.

How do you sharpen a Double Edge blade?

It’s best to use a guide system or diamond abrasives and maintain symmetrical angles on both sides. It’s advisable to sharpen each edge separately to keep the tip centered.

How does the Double Action OTF mechanism work?

The slide trigger activates the automatic deployment of the blade, and sliding it in the opposite direction causes the blade to retract automatically. There is no need to manually fold the blade.

How do you care for the black finish on the blade?

The blade should be cleaned regularly and thoroughly dried after coming into contact with moisture. It’s best to avoid harsh abrasives, which could accelerate surface wear.

Does the yellow handle have a practical advantage?

The bright color increases the knife’s visibility, which can make it easier to find among your gear or at your workplace. At the same time, it creates a distinct contrast with the black blade and hardware.

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