Kubey Stheno Knife Yellow Ultem, Blackwashed 14C28N by MUZI Design (KU404E)
- Stheno Yellow Ultem, Blackwashed, full tang, pushdagger, designed by MUZI Design. Blade made of Sandvik 14C28N stainless steel, handle made of ULTEM. Kydex sheath, simple clip allows attachment to belt or pocket.
0,00 €Kubey Stheno Yellow Ultem, Blackwashed 14C28N Knife by MUZI Design (KU404E)
The Kubey Stheno KU404E is a compact, fixed-blade pushdagger designed by MUZI Design, combining Sandvik 14C28N with a yellow Ultem handle. The full-tang construction, black Kydex sheath, and compact dimensions create a practical knife with a distinctive, modern character.
The 75.00 mm blade features a Clip Point profile, a flat grind, and a dark blackwashed finish. The knife weighs 87.00 g, making it compact and comfortable for everyday carry.
Sandvik 14C28N and Vacuum-Cryogenic Heat Treatment
The blade is made of Sandvik 14C28N steel, hardened to 60–62 HRC. Vacuum hardening combined with cryogenic treatment was used, which helps achieve high hardness, wear resistance, and stable steel properties during regular use.
Clip Point, flat grind, and Blackwashed
The Clip Point profile ensures a well-controlled tip and versatile cutting geometry. The flat grind facilitates smooth blade glide through the material, while the blackwashed finish gives the blade a dark, rugged appearance and minimizes the visibility of minor wear marks.
Yellow Ultem, Full Tang, and Kydex
The handle is made of yellow Ultem and mounted on a Full Tang construction, in which the blade tang extends the entire length of the handle. The grips are secured with steel screws coated with black PVD.
The knife comes with a black Kydex sheath. The set also includes a TEK-Lok attachment, which allows you to conveniently attach the sheath to your belt or gear.
Key Features at a Glance
- Sandvik 14C28N — steel with a hardness of 60–62 HRC.
- Vacuum-cryogenic treatment — promotes high hardness, wear resistance, and steel stability.
- Clip Point — a versatile cutting profile.
- Flat grind — efficient cutting geometry.
- Blackwashed — a dark, functional blade finish.
- Yellow Ultem — distinctive yellow handle.
- Full Tang — full tang for increased structural rigidity.
- Steel screws with black PVD coating — durable grips.
- Kydex — a rigid black sheath.
- TEK-Lok — an additional sheath retention system.
Technical data
| Product Number | KU404E |
| Product Name | Kubey Stheno Yellow Ultem, Blackwashed 14C28N by MUZI Design |
| Overall Length | 109.00 mm / 4.29“ |
| Blade length | 75.00 mm / 2.95” |
| Blade thickness | 3.80 mm / 0.15“ |
| Handle Length | 34.00 mm / 1.34” |
| Handle Thickness | 12.00 mm / 0.47" |
| Weight | 87.00 g / 3.07 oz |
| Blade material | Sandvik 14C28N |
| Blade Hardness (HRC) | 60–62 HRC |
| Blade Grind | Flat |
| Blade Finish | Blackwashed |
| Handle material | Ultem |
| Handle finish color | Yellow |
| Sheath | Black Kydex |
| Additional accessories | TEK-Lok |
| Designer | MUZI Design |
| Brand | Kubey |
| Manufacturer | Kubey Knife |
| Country of origin | P.R.C. |
Frequently Asked Questions
How do I care for Sandvik 14C28N steel?
It’s a good idea to clean the blade regularly and dry it thoroughly. 14C28N combines corrosion resistance with ease of sharpening, making it ideal for everyday use.
How do you sharpen the Kubey Stheno?
14C28N steel responds well to ceramic and water stones, as well as guided sharpening systems. It’s important to maintain a consistent angle and regularly refresh the cutting edge.
What sharpening angle should be used for the Kubey Stheno?
The recommended sharpening angle range is 15°–20°. This allows you to adjust the edge geometry to your preferred balance between cutting aggressiveness and blade durability.
What does “Full Tang” construction mean?
Full Tang means that the blade tang extends the entire length of the handle. This construction increases the knife’s rigidity and ensures a solid connection between the blade and the grips.
How to Use and Maintain a Kydex Sheath?
It’s a good idea to regularly clean the sheath of sand, dust, and other particles that could scratch the blade. Before storing the knife, make sure that both the blade and the inside of the sheath are clean and dry.
Prepared by: Specialists at Sharg® company – Your expert in EDC and cutting tools
