KATSU M390 Steel Pocket Knife, Carbon Fiber Handle with Mother of Pearl Inlays, Liner Lock, EDC Folding Knife for Camping Hiking, Japanese Folding Knife

M390 at HRC 60-62, Measured Against the Field - Powdered metallurgy stainless steel from Böhler, Austria.High chromium content holds corrosion resistance without trading away hardness. The 3.3-inch drop point blade arrives shaving-sharp from the factory, resharpens cleanly on ceramic or diamond media, and holds a working edge through extended use without microchipping.
Ceramic Bearings, Titanium Clip, 0.5mm Lock Tolerance - Pivot runs on ceramic ball bearings - not washers, not phosphor bronze. Liner lock engages at full open with zero vertical blade movement and less than 0.5mm of lateral play under pressure. Reversible deep-carry titanium clip supports tip-up and tip-down carry. The hardware spec is not a talking point. It is the build standard.
4.9 oz Is Not an Accident - Carbon fiber handles exist in knives half this weight. The extra mass here is deliberate - steel liners built to tolerance, a titanium clip with actual wall thickness, ceramic bearings that do not flex under load. In hand, it reads as balance and authority, not burden. This is what a precision folder feels like when nothing has been value-engineered out of it.
Carbon fiber and mother-of-pearl – a unique and eye-catching design – each handle is handcrafted by artisans, and the white mother-of-pearl inlays are specially selected. Each mother-of-pearl has a different luster under light, meaning that each knife is one-of-a-kind.
KATSU - Built for the Collector Who Carries - Designed for the EDC user who has carried enough production folders to know exactly what they are settling for - and has decided to stop. Tight tolerances, smooth action, material selection that does not cut corners at the component level. Every knife passes strict quality control before leaving the workshop. For those who know the difference, this is the logical next step.