Knife
Psycho Edge Zero-1.0LH (Left-handed)
Psycho Edge Zero-1.0LH (Left-handed)
Launch date : Monday, September 1, 2025
Price JPY 26,000
- Right side when held: Saber edge (straight blade)
- Left side when held: Scandi edge (straight blade)
Design patent acquired: PAT1799347
The dual madness of the “Psycho Edge” carves open a whole new world.
Other expenses : Shipping costs only include the freight charges from Japan. Depending on the country of purchase, additional value-added tax (VAT) and customs fees may apply. Each purchaser will be responsible for these costs.
SpecPsycho Edge Zero-1.0LH (Left-handed)
Grind of Right-side | Saber (Flat) |
---|---|
Grind of Left-side | Scandi (Flat) |
Full Length | 9.25inch 230mm |
Blade Length | 4.21inch 107mm |
Blade Thickness | 0.16inch 4.0mm |
Weight | 9.45onz 268g |
Blade Material | HS⁴01 High-strength special stainless steel |
Blade Hardness | HRC60 + Sub-Zero Treatment |
Handle Material | G10 Tsuiki-Black |
Screw Material | Slotted screw SUS304 |
Sheath Material | EVA + polyethylene |
Sheath Weight | 1.41onz 40g |
Radical Blade Design
The cutting performance-focused asymmetrical blade design, proven in the Prominence MH-001/MH-015 (0.22" blade thickness), has now evolved.
For knives with thinner blades like this model (0.16" blade thickness), the curved clam-shaped grind loses its effectiveness. To address this, we adopted a new asymmetrical straight-edge configuration:
- Saber grind on the side that follows the wood grain (equivalent to Prominence series)
- Steep-angle Scandi grind on the side where wood chips are released
This results in a novel combination of a wide straight edge × narrow straight edge, optimized for precision and control.
※ This blade design is protected under registered design patent (PAT.1799347), and cannot be sold by other manufacturers in japan.

Optimized for casual use
This model is designed with a concept focused on casual, rugged use across a variety of scenarios.
The handle material is G10, commonly used in firearm grips, and features Muthos Homura’s original tsuiki-style hammered finish.
Its shape is compatible with the Prominence series, allowing for shared components and streamlined part replacement.
A dedicated sheath is included.
※ Please note: the sheath is not compatible with Prominence MH-001.
Maintenance-friendly design
While the convex blade of the Prominence series requires stropping with leather strops for optimal maintenance,
this model features a straight edge that can be sharpened more easily—similar to a kitchen knife—using standard whetstones or sharpening tools.
※ If the blade becomes chipped or sharpening proves difficult, a paid sharpening service is available.