- Microburst Blue Micarta, Beadblasted fixed-blade EDC pocket knife with a full-tang construction, designed by K.C. Spiron. Sheepsfoot-style blade made of 14C28N stainless steel; Micarta composite handle. Kydex sheath with a Tek-Lok fastener.
72,88 €Kubey Microburst Blue Micarta, Beadblasted 14C28N Knife by K.C. Spiron (KU455A)
The Kubey Microburst KU455A is a compact fixed-blade knife designed by K.C. Spiron, combining Sandvik 14C28N steel with a blue Micarta handle. The full-tang construction, Kydex sheath, and TEK-Lok fastening system create a practical set for everyday use and convenient carrying.
The 75.00 mm blade features a Sheepsfoot profile, a flat grind, and a matte bead-blasted finish. Its small size, 90.00 g weight, and simple design make the Microburst a great fit for the compact utility knife category.
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.
Sheepsfoot, Flat Grind, and Bead Blasted
The Sheepsfoot profile provides good control over the cutting edge and is well-suited for precision tasks. The flat grind ensures smooth gliding of the blade through the material, while the bead-blasted finish gives the blade a matte, technical look.
Blue Micarta, Full Tang, and Kydex
The handle is made of blue Micarta and mounted on a Full Tang construction, in which the blade tang extends the entire length of the handle. The grips are secured with bead-blasted steel screws.
The knife comes with a black Kydex sheath and the TEK-Lok system, which allows for convenient attachment of the sheath to a belt or other gear.
Key Features at a Glance
- Sandvik 14C28N — steel with a hardness of 60–62 HRC.
- Vacuum-cryogenic treatment — enhances the steel’s high hardness, wear resistance, and stability.
- Sheepsfoot — a profile that facilitates controlled cutting.
- Flat Grind — a versatile working geometry.
- Bead Blasted — a matte finish on the blade.
- Blue Micarta — a blue, functional handle.
- Full Tang — a full tang that increases the structure’s rigidity.
- Sandblasted steel screws — secure attachment of the grips.
- Black Kydex — rigid sheath.
- TEK-Lok — sheath attachment system.
Technical data
| Product Number | KU455A |
| Product Name | Kubey Microburst Blue Micarta, Beadblasted 14C28N by K.C. Spiron |
| Overall Length | 175.00 mm / 6.89“ |
| Blade Length | 75.00 mm / 2.95” |
| Blade Thickness | 3.10 mm / 0.12“ |
| Handle Length | 100.00 mm / 3.94” |
| Handle Thickness | 11.00 mm / 0.43" |
| Weight | 90.00 g / 3.18 oz |
| Blade Material | Sandvik 14C28N |
| Blade hardness (HRC) | 60–62 HRC |
| Blade grind | Flat |
| Blade finish | Bead Blasted |
| Handle material | Micarta |
| Handle finish color | Blue |
| Sheath | Black Kydex |
| Additional accessories | TEK-Lok |
| Designer | K.C. Spiron |
| 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 I sharpen the Kubey Microburst?
14C28N steel responds well to ceramic and water stones, as well as guided sharpening systems. Regularly refreshing the edge helps maintain good cutting sharpness.
What sharpening angle should be used for the Kubey Microburst?
The recommended sharpening angle range is 15°–20°. This allows you to adjust the edge geometry to your preferred balance between cutting performance 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 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 dust, sand, and other debris. Before stowing the knife, make sure 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







