T10 Steel Clay Tempered Odachi with Real Hamon - Gray Rayskin Saya, Peony Copper Tsuba

The 28.3-inch nagasa is forged from T10 high carbon steel and clay tempered to 60 HRC, producing a genuine hamon line that runs the full length of the blade. Because the differential hardening is achieved through actual clay application and quenching - not wire brushing or surface printing - the activity along the hamon shifts naturally in different light, reflecting the folded melaleuca steel construction beneath. The hand-finished edge is the direct result of master smiths working at forge temperatures exceeding 1,000 degrees, then carefully hand-polishing the chrome-bright surface to a mirror quality. Explore the full range in our Odachi collection.

The tsuka measures 10.2 inches and is built over a full tang core wrapped with real white samegawa (rayskin) before the black silk ito is applied in a traditional diamond-pattern wrap. Knot paper habaraki accents sit beneath the ito at each exposed rayskin window. The fuchi and kashira are cast in copper with a mixed gold-brown and russet finish, carrying the same shishi and floral relief work that appears on the tsuba.

The copper tsuba is cast in an open-work oval form showing a peony blossom design with shishi (lion-dog) figures worked into the border. The gold-brown patina on the main body contrasts with silver-toned relief highlights and darkened recesses, giving the guard a layered, antique depth. A matching copper habaki seats the blade cleanly in the saya opening.

The 30.3-inch saya is covered in real rayskin - the same white samegawa used on the handle - giving it a naturally textured surface before the gray piano lacquer finish is applied over it. The result is a saya that reads as a cool, pearlescent gray with visible rayskin texture beneath the gloss. Three copper menuki-style fittings in the same russet and gold-brown finish are mounted along the saya body, and a black sageo cord is tied in a traditional knot at the kurikata. This full koshirae presentation pairs the blade with a complete set of matched fittings throughout. See more long-blade styles in Nodachi Tachi Sword.

Overall length: 40.5 inches. Nagasa: 28.3 inches. Tsuka: 10.2 inches. Saya: 30.3 inches. Weight: 2.65 lbs. Blade material: T10 carbon steel, clay tempered, full tang, hand-finished edge. Tsuba: real copper, peony theme. Saya material: real rayskin under piano lacquer, gray. Style: koshirae.