Microtech LUDT Gen III S/E Automatic Knife OD Green Aluminium, Stonewashed M390MK by Tony Marfione (1135-10OD)

Microtech LUDT Gen III S/E OD Green Aluminum, Stonewashed M390MK by Tony Marfione (1135-10OD) is an automatic folding knife featuring an S/E Drop Point blade and Böhler M390MK steel.

Microtech LUDT Gen III – an OD Green automatic folding knife

Microtech LUDT Gen III S/E OD Green Aluminum, Stonewashed M390MK by Tony Marfione (1135-10OD) is a side-opening automatic knife that evolves the classic L.U.D.T. line into a modern, third-generation model. The model retains the distinctive silhouette of the Large Underwater Demolition Team series but introduces improvements essential for everyday use: a redesigned handle, non-slip 3M Inlay inserts, ball bearings, and standard Torx hardware for easy maintenance. The automatic push-button opening mechanism remains fast, crisp, and comfortable to operate with one hand.

The S/E Drop Point blade is crafted from Böhler M390MK steel and finished with a Stonewashed finish. The flat grind ensures excellent cutting performance while maintaining adequate blade strength, and the Drop Point profile is well-suited for EDC, outdoor, and utility tasks. The handle, made of 6061-T6 aluminum with 3M inlays in OD Green / Black, combines low weight, durability, and a secure grip, even when your hands are wet or dirty.

Böhler M390MK – Microtech steel for heavy-duty use

Böhler M390MK is a variant of M390 steel developed for Microtech in collaboration with Böhler, with an emphasis on high wear resistance, corrosion resistance, and long-lasting sharpness. In the LUDT Gen III model, this material is well-suited for tasks where predictable edge performance is essential: cutting cardboard, tape, cord, film, plastics, and outdoor gear.

The Stonewashed finish gives the blade a slightly technical, utilitarian look and helps mask minor marks that develop during regular use. Combined with the OD Green handle, it creates a variant with a distinctly outdoor character, while retaining the elegance characteristic of Microtech products.

S/E Drop Point and flat grind – functional blade geometry

The S/E Drop Point profile offers a strong tip, a long cutting edge, and excellent control during everyday tasks. The single-edged blade excels at cutting through packaging, cardboard, tape, cord, and synthetic materials, while the pronounced spine supports smooth curved cuts. Long fuller grooves on both sides of the blade emphasize the technical appearance of the design and reinforce the character of the LUDT line.

The flat grind makes it easier to guide the blade through the material and maintains a good balance between cutting aggressiveness and blade strength. The serrated thumb rest on the blade spine aids control during heavier pressure, and the automatic push-button mechanism allows you to quickly prepare the knife for use without changing your grip.

Automatic Mechanism, Ball Bearings, and Button Lock

The LUDT Gen III features a spring-loaded push-button opening mechanism designed for quick and reliable blade deployment. The button is set in a slight recess, which reduces the risk of accidental activation and improves control during use. The mechanism is supported by ball bearings, and the third-generation design incorporates a feature described by the manufacturer as 24 silica carbide bearings, which improve the blade’s smoothness.

The Button Lock stabilizes the blade when open and allows for convenient release of the mechanism. This solution is well-suited for a utility-grade automatic folder, as it combines speed of operation with intuitive handling. The knife opens with the push of a button, and when you’re done, you can safely fold it closed while maintaining full control over the blade.

OD Green Aluminum, 3M Inlay, and steel tip-up clip

The handle is made of 6061-T6 aluminum, a lightweight and durable alloy used in structures requiring a good weight-to-stiffness ratio. The 3M Inlay inserts feature a rough, non-slip texture that improves grip in rain, wet conditions, and when working with gloves. The OD Green / Black color gives the knife a rugged, functional look.

The handle features jimping grooves that help control hand placement. The right-handed, tip-up clip allows you to carry the knife comfortably in your pocket, and the clip’s steel construction withstands daily use well. There is a lanyard hole at the back of the handle, useful for securing the knife or adding decorative paracord.

Why Choose the Microtech LUDT Gen III OD Green?

The Microtech LUDT Gen III S/E OD Green is designed for users who expect an automatic folder with smooth operation, a robust spring mechanism, and premium-grade materials. Böhler M390MK steel ensures long-lasting edge retention, the S/E Drop Point profile offers versatility for everyday tasks, and the aluminum handle with 3M Inlay inserts improves grip control.

The third generation of the LUDT preserves the spirit of the classic Microtech model while adding features that enhance ease of use and maintenance. This is a switchblade for those seeking a combination of speed, a reliable lock, high-quality steel, and a practical, rugged aesthetic.

Key Features at a Glance

• Böhler M390MK: Microtech powder-coated steel with high wear resistance.
• S/E Drop Point: a versatile profile for EDC, outdoor use, and utility work.
• Stonewashed: a rugged finish that masks minor signs of wear.
• 3M Inlay: non-slip inlays that improve grip control.
• Button Lock: a lock designed for an automatic push-button mechanism.
• Ball Bearings: smoother blade operation, including 24 silica carbide bearings.
• OD Green Aluminum: an outdoor-style finish on the 6061-T6 aluminum handle.

Technical Specifications

Frequently Asked Questions

What makes the Microtech LUDT Gen III stand out?

The LUDT Gen III retains the classic Large Underwater Demolition Team design but incorporates 3M Inlay inserts, ball bearings, standard Torx screws, and a tip-up clip, enhancing user comfort.

How does the automatic push-button mechanism work?

The blade opens when the button is pressed. A spring-loaded mechanism ensures quick, decisive blade deployment, and the recessed button improves control during use.

What is Button Lock?

Button Lock stabilizes the blade once it’s open and allows you to release the lock with the button. This is a convenient feature in a switchblade knife, as it ensures simple and intuitive operation.

How do you care for and sharpen Böhler M390MK steel?

After use, clean the blade, dry it thoroughly, and periodically coat it with a thin layer of oil. For sharpening Böhler M390MK, it is best to use diamond or CBN wheels, finishing with a fine grit.

What are 3M Inlay inserts used for?

3M Inlay inserts increase the grip of the handle and help maintain a secure grip in wet conditions, while wearing gloves, and when working in more challenging outdoor conditions.

Does the Microtech LUDT Gen III have a pocket clip?

Yes. The model features a right-handed, tip-up steel clip designed for carrying the knife in your pocket on a daily basis.

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