Microtech Cypher II S/E OTF Knife Tan Aluminum, Black M390MK by Deryk Munroe and Tony Marfione (1241-1TA)
- Cypher 2 S/E Tan Aluminum, Black result of a collaboration between Deryk Munroe and Tony Marfione, has undergone a comprehensive modernization. Innovative dual blade deployment mechanism ensures smoother operation than ever before in OTF 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.
Cypher II S/E Tan Aluminum, Black is the second generation of the legendary OTF (Out The Front) knife, created in collaboration between Anthony Marfione and Deryk Monroe. Representing the pinnacle of advanced technology, the Cypher has undergone a comprehensive modernization. The innovative dual mechanism driving the blade ensures smoother operation than ever seen before in an OTF knife.
The redesigned Cypher II introduces numerous enhancements, improving both aesthetics and functionality. It features stylish jimping for excellent ergonomics and grip comfort, a titanium clip with a ceramic ball for easy carry, a screwless body, an integrated glass breaker, and an updated slider groove design for a sleek look. With its size and lightning-fast blade deployment, the Cypher sets a new standard for the iconic blend of style and practicality.
Deryk DC Munroe is the creator of MunroeKnives, who has had a lifelong passion for guns. His roots date back to 1984, and in 1997 he began a full-time career as a knife maker, constantly developing his skills and style. Known for his excellent folding knives, Munroe is collaborating with Tony Marfione on Cypher, the second masterpiece born from their partnership.
M390MK - a collaboration between Microtech and Böhler engineers resulted in an exclusive version of M390 steel made only for Microtech. The carbon content has been increased and subjected to closer scrutiny thus improving the properties of M390 steel for better edge retention, corrosion resistance and polishing. Martensitic high-performance chromium 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 19.0% (Cr) doped with 1.95% carbon (C), vanadium 4.0% (V), and is hardened to 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 - machine-ground in a Wharncliffe S/E (Single Edge) style, black coated. The blade was brought out with a high flat grind, providing excellent cutting properties. The long grain further strengthens the blade. The strong mechanism of extending / retracting the blade with the help of a moled Thumb Slide, a stepped slide under the thumb, requires for safety the application of a specific force to overcome the resistance of the spring. The method of opening provides seamless opening for both right and left-handed people.
Handle - made with excellent precision in 3D technology on CNC milling machines, from sand-anodized coated 6061-T6 aluminum. The surface texture of the Handle and the deep notches (jimping) on it make the knife non-slip in the hand during use. The slim profile and milled two-position (right/left) solid deep-carry clip allow the knife to be carried discreetly in the pocket, in tip-down (blade tip down) position. Equipped with a smooth rollerball, thanks to which the knife easily slides into the pocket without damaging the edges of the pocket. The Handle is finished with a glass breaker, there is also a hole to weave a decorative cord.
Technical data:
Product number: 1241-1 TA
Product name: Cypher® II S/E Tan Aluminum, Black Standard
Overall length: 216.0 mm / 8.50”
Blade length: 88.9 mm / 3.50”
Blade thickness: 2.9 mm / 0.11”
Handle length: 127.0 mm / 5.00”
Handle thickness: 11.9 mm / 0.47”
Weight: 112.0 g / 3.95 oz
Blade material: Böhler M390MK
Blade hardness: n.d.
Blade grind: Flat
Blade finish: Black coating
Handle material: 6061-T6 Aluminum
Handle finish color: Tan
Backspacer material: 6061-T6 Aluminum
Backspacer color: Tan
Clip: Right/left, Tip-down
Clip material: Stainless Steel
Pivot mechanism: n.d.
Locking mechanism: Slide Lock
Opening method: Automatic, push/pull Thumb slider
Additional accessories: none
Designer: Deryk Munroe / Tony Marfione
Brand: Microtech Knives
Manufacturer: Microtech Knives
Country of origin: USA
Developed by: the Sharg® company