Microtech Stitch-A S/E Black Aluminum, Stonewashed P/S by Borka Blades and Tony Marfione (169-11)
- Stitch S/E Black Aluminum, Stonewashed P/S large automatic knife, the result of a collaboration between Sebastijan Berenjie of Borka Blades and Microtech. Wide harpoon-shaped blade, excellent materials and legendary workmanship from Microtech Knives.

This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
Stitch S/E Black Aluminum, P/S Stonewashed a bold design for a versatile automatic knife, the result of a collaboration between Sebastijan Berenji and Microtech. A wide Blade and a simple handle, comfortable in every grip, give a strong tactical knife made with attention to the finest details and from the best materials. A faithful companion that will never disappoint
Borka Blades (Sebastijan Berenji) is a very popular creator of custom knives with skills that attract a multitude of blade lovers. Sebastijan was born and raised in Yugoslavia and became a US citizen in 2016. The company is named after his late mother, Borka. A few years after he began his career as a knifemaker, he designed a unique folding knife and generated a lot of interest among collectors and enthusiasts. He not only attracted attention, but also attracted the interest of Microtech Knives CEO Anthony Marfione, who offered him a partnership.
M390 Microclean® - a martensitic high-performance chrome steel produced by powder metallurgy. Due to its alloy concept, it has extremely high wear resistance and high corrosion resistance. Due to its high wear resistance, it adequately maintains the shape of the edge, so the blade stays sharp for a very long time (requiring minimal maintenance). Another of the advantages is resistance to the formation of "wire" during sharpening. The steel has a high chromium content of 20.0% (Cr) doped with 1.9% carbon (C), vanadium 4.0% (V), and is hardened between 59-61 HRC. This super steel is comparable to Carpenter's CPM 20CV or CTS-204P steels. Manufactured by Böhler Edelstahl in Kapfenberg, Austria.
Blade - wide, S/E (Single Edge Spear Point) type, partially serrated P/S (Part Serrated) matte finish with Stonewashed sandblasting. The gently curved cutting edge converges toward a needle-sharp tip. The solid thickness of the blade combined with the concave grind (Hollow Grind) gives excellent cutting properties combined with high durability. The long false blade on the back increases the already not inconsiderable material piercing properties. The knife is opened with a button on the left side of the handle. To maintain full control of the blade in the lower part we have a large, serrated finger place (finger choil) and on the back of the blade was made upper jimping, notched thumb rest. The whole thing is locked with the well-known and proven Button Lock.
Handle - made on CNC milling machines with excellent precision, from anodized 6061-T6 aluminum with a deeply milled 3D structure. The knife's wide opening button has been recessed to prevent accidental opening. Both grips have been bolted together using a solid aluminum backspacer. A single-sided (right) clip allows the knife to be carried discreetly in tip-up position. The protruding section of the backspacer in which there is a hole for a cord can also serve as an improvised glass breaker.
Technical data:
Product number: 169-11
Product name: Stitch S/E Black Aluminum, Stonewashed Partial Serrated
Overall length: 216.0 mm / 8.5"
Blade length: 95.2 mm / 3.75"
Blade thickness: 4.8 mm / 0.19"
Handle length: 127.0 mm / 5.0"
Handle thickness: 15.7 mm / 0.62"
Weight: 179.0 g / 6.32 oz
Blade material: Böhler M390
Blade hardness: n.d.
Blade grind: Hollow
Blade finish: Stonewashed
Handle material: 6061-T6 Aluminum
Handle finish color: Black
Backspacer material: 6061-T6 Aluminum
Backspacer color: Gray
Clip: Right, Tip-up
Clip material: Stainless Steel
Pivot mechanism: n.d.
Lock: Button Lock
Opening method: Automatic, side button
Additional accessories: none
Designer: Borka Blades (Sebastijan Berenji) / Anthony Marfione
Brand: Microtech Knives
Manufacturer: Microtech Knives
Country of origin: USA
Developed by: the Sharg® company