- Medusa Ultem, a bead-blasted full-tang pushdagger designed by MUZI Design. The blade is made of Sandvik 14C28N stainless steel, and the handle is made of ULTEM composite. The sheath is made of Kydex and features a Tek Lok fastening system.
50,49 €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.
Medusa Ultem, Beadblasted, a push dagger designed by the renowned studio MUZI Design, a perfect example of precision craftsmanship and functionality. The full tang ensures exceptional durability, making it a reliable tool in various situations. The blade is made of Sandvik 14C28N is characterized by excellent corrosion resistance and long-lasting sharpness. The handle made of ULTEM composite offers a secure and comfortable grip, even in difficult conditions. The textured surface provides additional control during use. The Kydex sheath is designed with practicality in mind, and the Tek Lok mounting system allows for easy attachment to a belt or gear, ensuring quick access to the knife. The knife combines elegant design with reliable functionality, meeting the expectations of even the most demanding users.
Push Dagger - also known as a Punch Dagger, Punch Knife, Push Knife, or less commonly Push Dirk, is a knife with a short blade and a handle positioned transversely to the blade, in the shape of the letter “T”. Designed to be gripped and held in a closed fist so that the blade protrudes from the front of the fist, between the index and middle fingers or between the two middle fingers, when the handle and blade are symmetrical.
Kubey - an independent brand and one of the largest manufacturers producing knives of excellent quality while maintaining great prices! The company’s motto is “An Edge Above the Rest” / “The Blade Above All.” Thanks to the use of high-speed CNC machine tools, milling machines, laser cutting, and custom hand finishing, the brand focuses on high-quality craftsmanship and an innovative approach to design. Kubey stands for legendary durability and functionality in cutting tools that will serve you for years!
14C28N - martensitic chromium stainless steel is the latest achievement in the range of knife steels produced by the Swedish steelworks Sandvik. An optimized chemical composition with a unique combination ensures the highest quality, excellent edge performance, high hardness, and corrosion resistance. By reducing the carbon content 0.62% (C) and increasing the chromium content 14.0% (Cr), as well as adding nitrogen 0.11% (N) significantly increased corrosion resistance. Considered an improved version of the steel 13C26. Unbeatable in the price/quality category!
Vacuum & Cryogenic - 14C28N steel has undergone a specialized heat treatment process comprising two key stages. Vacuum Heat Treatment (vacuum heat treatment), the steel is hardened in a vacuum environment, which minimizes oxidation and ensures more uniform metal properties. This process increases the steel’s strength and structural integrity. Cryogenic Treatment (cryogenic treatment) after heating, the steel is rapidly cooled to extremely low temperatures, often below -100°C (-148°F). This transformation converts residual austenite into martensite, significantly increasing hardness, wear resistance, and overall durability. Thanks to these advanced processes, 14C28N delivers exceptional performance, offering both razor-sharp edge retention and remarkable blade durability.
Blade - Spear Point style, single-edged. Finished using a beadblasted method to mask minor scratches caused during use. The cutting edge with a distinctly distinct belly tapers toward the sharp tip of the blade. The blade thickness ensures high durability while flat grind (Flat Grind) provides excellent cutting edge geometry and extreme cutting performance. The finger loop further stabilizes the grip and prevents the knife from accidentally slipping out of your hand.
ULTEM™ - a polymer belonging to the polyetherimide family, or simply PEI. This material is characterized primarily by high mechanical and impact strength with a very high strength-to-weight ratio. It also features high thermal resistance (180°C) and high chemical resistance to all types of solvents (synthetic and natural), lubricants, and other chemicals. Add to this its complete resistance to weather conditions, and we have the ideal material for knife handles.
Handle - grips made of grips made of ULTEM composite, a material that is extremely mechanically durable and practically completely resistant to weather conditions and chemicals, textured to improve grip. The contoured shape ensures a comfortable, secure grip even with wet hands.
Sheath - made of Kydex, extended, protecting the blade. Thanks to the Tek Lok mounting system we can attach the knife to a belt or gear almost anywhere.
Technical data:
Product number: KU242G
Product name: Medusa Ultem, Beadblasted
Overall length: 158.0 mm / 6.22"
Blade length: 94.0 mm / 3.7“
Blade thickness: 4.0 mm / 0.16”
Handle length: 64.0 mm / 2.52“
Handle thickness: 12.0 mm / 0.47”
Weight: 131.0 g / 4.62 oz
Blade material: Sandvik 14C28N
Blade Blade: 60-62 HRC
Grind Blade: Flat
Finish Blade: Beadblasted
Handle material: ULTEM
Handle finish color: Yellow
Sheath: Kydex
Additional accessories: Tek-Lok attachment
Designer: MUZI Design
Brand: Kubey Knife
Manufacturer: Kubey Knife
Country of origin: P.R.C.
Developed by: Sharg® company
















