Ha means leaf — and like a leaf’s veins, the grain of this blade follows lines no machine could draw. This is a true master’s katana, made by the full traditional sequence of bending, forging, hardening and polishing, built on the layered Kobuse construction that wraps a hard cutting steel around a softer, resilient core. It is aimed at the connoisseur who wants the real thing, not a production approximation.
Specifications
| Blade steel | Kobuse forging, T10 steel with Damascus hamon, cross-grinding |
|---|---|
| Blade colour | Gray |
| Tsuba | Pure copper and carved gilded silver |
| Saya | Lacquered solid wood |
| Tsuka | Stingray leather |
Dimensions
| Total length | 104 cm |
|---|---|
| Blade length | 71 cm |
| Blade width | 3.2 cm |
| Blade thickness | 0.7 cm |
| Handle length | 27 cm |
Forging & Steel
Kobuse is one of the old master methods: a hard, high-carbon outer steel is forged around a tougher inner core, so the sword keeps a keen edge without becoming brittle under the stress of a cut. Here that outer is T10 carrying a Damascus hamon, finished with cross-grinding for precise geometry and a hamon that the master draws up entirely by hand polish — patient work that reveals a depth no etched line can fake. The result is a high-value piece for the collector who wants to own a genuine master’s katana rather than a factory blade. The copper tsuba is sculpted with silver and gold details, the saya is lacquered solid wood that protects the edge between sessions, and the tsuka is wrapped in stingray leather for a grip that lasts. It is pitched squarely at serious collectors and martial-arts culture enthusiasts who appreciate the difference handwork makes.
Is it battle-ready?
Yes. The Kobuse T10 blade is hardened, hand-polished and sharpened for real cutting at the highest level, while its master finish makes it a centrepiece for display. Explore the rest of the master-grade katana range, or compare it with the hand-forged Igen and the composite Densetsu.
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