Microtech Ultratech T/E Signature OTF Knife Carbon Fiber/Black Aluminum, Satin M390 by Tony Marfione (123-4CFS)
- Ultratech T/E Signature Carbon Fiber/Black Aluminum, Satin full-size OTF automatic knife from the Signature line. The model is distinguished by the design of the handle, with light carbon fiber on one side and aluminum on the other. Tony Marfione design

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.
Ultratech T/E Signature Carbon Fiber/Black Aluminum, Satin is a full-size Ultratech OTF (Out The Front) automatic knife from the Signature series. The model is distinguished by a unique design where on one side we have light and impressive Carbon Fiber, and on the other durable aluminum. Working in D/A (Double Action) mode, it allows the blade to be quickly extended and retracted with the flick of a thumb, making it an extremely practical tool in situations requiring a quick response. Designed by Tony Marfione, owner of Microtech Knives.
Ultratech OTF Line - Microtech's flagship OTF line that set the standard for all Out The Front knives. Proprietary Ultratech trigger design that stays in a “resting” position at all times except when activated. This means that the spring does not fatigue, reducing wear and tear on the internal release mechanisms, ensuring that the knife will always work effectively. Its light weight, one-handed opening and closing, slim handle and sharp blade make this a one-of-a-kind knife, available only from Microtech.
Signature Series - Microtech's elite product line designed for buyers who are looking for more exclusive accents in relation to the beloved production models from the Core series (logo with claws on the knife). The production of Signature Series knives often uses the highest quality materials and finishes. The line also includes themed knives such as Bounty Hunter, Outbreak, Memento Mori and Molon Labe. A distinctive feature is the dagger logo on the handle and Anthony Marfione's signature on the clip.
M390 Microclean® - Martensitic high-performance chromium steel produced by powder metallurgy. Due to the alloy concept, it is characterized by extremely high wear resistance and high corrosion resistance. Thanks to its high wear resistance, it retains the shape of the edge properly, so that the blade remains sharp for a very long time (requires minimal maintenance). Another advantage is the resistance to “wire” formation during sharpening. Steel with a high chromium content of 20.0% (Cr) with an admixture of 1.9% carbon (C), 4.0% vanadium (V), hardened to 59-61 HRC. This super steel is comparable to CPM 20CV or CTS-204P steel by Carpenter. Manufactured by Böhler Edelstahl in Kapfenberg, Austria.
Blade - machine-ground T/E (Tanto Edge), sharpened on one side, with a long line of grooves on both sides of the blade. Finished with an elegant satin finish. The blade has a high flat grind, which ensures excellent cutting properties. This gives the knife excellent piercing properties while maintaining high durability. The strong blade extension / retraction mechanism with a knurled thumb slide requires a certain amount of force to overcome the spring resistance for safety reasons. The opening method ensures trouble-free opening for both right- and left-handed people.
Handle– the display side is made of high-quality Carbon Fiber composite with CNC milling in 3D technology. The other side is made of aluminum 6061-T6. The texture of the handle ensures that the knife does not slip in the hand during use. There are jimping grooves on the top and bottom of the handle for a more secure grip. The slim profile and milled two-position (right/left) solid deep carry clip allow the knife to be carried discreetly in the pocket in a tip-down position. The clip features the Microtech logo, serial number and date of manufacture. The handle ends in a window-pane hammer, a solid steel triangle with a pressed-in tungsten carbide ball. There is also a hole for attaching a decorative cord.
Technical data:
Product number: 123-4 CFS
Product name: Ultratech® T/E Signature Carbon Fiber/Black Aluminum, Satin Standard
Overall length: 216.0 mm / 8.5”
Blade length: 87.4 mm / 3.44”
Blade thickness: 3.3 mm / 0.13”
Handle length: 117.0 mm / 4.625”
Handle thickness: 11.9 mm / 0.47”
Weight: 102.0 g / 3.60 oz
Blade material: Böhler M390
Blade hardness: n/a
Blade grinding: Flat
Blade finish: Satin
Handle material: 6061-T6 Aluminum / Carbon Fiber
Handle finish color: Black
Backspacer material: 6061-T6 Aluminum / Carbon Fiber
Backspacer color: Black
Clip: Right / left, Tip-down
Clip material: Stainless Steel
Pivot mechanism: n/a
Locking mechanism: Slide Lock
Opening type: Automatic, push/pull Thumb slider
Additional accessories: None
Designer: Tony Marfione
Brand: Microtech
Manufacturer: Microtech Knives
Country of origin: USA
Development: Sharg® company