Microtech Stitch Ram-Lok S/E Knife Black Aluminium, Black M390MK by Borka Blades and Tony Marfione (169RL-1)

Microtech Stitch RAM-LOK S/E Black Aluminum, Black M390MK Folding Knife by Borka Blades and Tony Marfione (169RL-1)

The Microtech Stitch RAM-LOK 169RL-1 is a full-size folding knife based on the distinctive design by Borka Blades and Tony Marfione. The black M390MK blade, aluminum handle, and RAM-LOK create a robust, functional design with a distinctly technical character, while retaining the recognizable silhouette of the Stitch series.

The 93.98 mm-long blade features a Wharncliffe profile, a flat grind, and a thickness of 4.00 mm. Manual opening via a hole in the blade works in conjunction with a ball-bearing pivot, while the ambidextrous RAM-LOK and reversible tip-up clip facilitate use regardless of hand dominance.

M390MK – Steel for a Full-Size Folder

M390MK was developed for Microtech in collaboration with Böhler and offers high resistance to abrasion and corrosion. In the case of the large, 4-millimeter blade, it combines a solid cross-section with long-lasting cutting edge retention. The material is well-suited to the Stitch RAM-LOK’s utilitarian nature and frequent use in EDC tasks.

Wharncliffe, flat grind, and Black

The Wharncliffe profile provides a long cutting edge and a precisely guided tip. The flat grind improves cutting performance despite the blade’s considerable thickness, while the black finish emphasizes the model’s uniform, tactical appearance and contrasts with the distinctive lines of the Stitch blade.

Black Aluminum, RAM-LOK, and Ball bearings

The handle is made of black aluminum, resulting in a sturdy construction without adding excessive weight. RAM-LOK allows the lock to be released from either side, and the ball bearing pivot supports the smooth movement of the heavy blade. A titanium backspacer and a tip-up clip complete the design intended for two-handed use.

Key Features at a Glance

• M390MK – steel developed for Microtech.
• Wharncliffe – Stitch’s signature geometry.
• 4.00 mm – substantial blade thickness.
• Flat – flat grind.
• Black – black blade finish.
• Black Aluminum – aluminum handle.
• RAM-LOK – two-handed lock.
• Ball Bearings – ball-bearing pivot.
• Manual, Thumb Hole – manual opening via a thumb hole in the blade.
• Titanium Clip – double-sided tip-up clip.

Technical Data

Frequently Asked Questions

What makes the M390MK stand out?

The M390MK combines high wear resistance with excellent corrosion resistance. This makes it well-suited for a large folding knife with a blade designed for regular use.

How do you sharpen a Stitch blade?

For the M390MK, it’s best to use diamond abrasives or a guide system. The Wharncliffe profile makes it relatively easy to control the angle along the long section of the cutting edge.

How does RAM-LOK work?

RAM-LOK locks the blade in place using a crossbar that moves within the handle. Access from both sides makes it easy to use with either the right or left hand.

What are the benefits of a ball-bearing pivot?

Ball bearings reduce resistance during blade movement and ensure smooth opening. This is particularly important in a large folder with a massive 4.00 mm-thick blade.

How do you care for the black finish?

The blade should be cleaned regularly and thoroughly dried after contact with moisture. It’s best to avoid highly abrasive cleaning agents, which could accelerate wear on the black surface.

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