Blade & metallurgy
A clay coat moderates cooling along the spine while the edge transforms at a faster rate, creating a visible hardened boundary after polish.





The tanto is treated as a complete composition rather than a reduced katana. Curvature, kissaki length and mounting depth are reviewed together to keep the proportions deliberate at close range.
Kuroha uses a pronounced kyosori profile to create a compact object with a strong silhouette. The T10 blade is clay tempered, hand polished and mounted with iron fittings, silk wrap and a dark urushi-style saya.
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Import, possession and use requirements vary by destination and remain the customer's responsibility. This review is not legal advice and does not promise customs clearance.
Continue to InquiryMissing measurements are not estimated. They are marked for confirmation during specification review.
A clay coat moderates cooling along the spine while the edge transforms at a faster rate, creating a visible hardened boundary after polish.
Iron fittings and a subdued black wrap keep attention on the blade’s curvature and hamon.
Hamon activity, horimono, wrap colour and saya surface can be discussed before the build sheet is approved.
Apply a thin film of neutral sword oil after handling and inspect the saya interior before storage.
Destination review, quotation, build-sheet approval and production timing are handled before final shipping arrangements.
Review the Process