T10 Steel Katana with Real Hamon - Black Lacquer Saya, Wave Copper Tsuba, Brown Cord Handle

The 29-inch T10 carbon steel nagasa is the centerpiece of this katana, hardened to 62 HRC and finished with a visible hamon line that traces the length of the chrome-polished blade. T10's high carbon content gives the steel its characteristic edge retention and structural rigidity, while the hand-finished surface reveals the subtle activity of the quench line - a detail that distinguishes a properly heat-treated blade from a production grind. Explore the full T10 Katana Sword collection to compare blade options at this hardness tier.

The tsuka measures 10.25 inches and is built on a full-tang core, meaning the steel runs the complete length from tip to pommel with no joint or pin-only attachment. Brown cord ito is wrapped over white polyurethane samegawa in a traditional diamond pattern, giving the grip both visual contrast and a textured surface that seats naturally in the hand.

At the guard, a real copper tsuba carries a wave motif rendered in silver tone - ocean crests and foam sculpted across the rounded plate in fine relief detail. The fuchi and kashira complement the copper base with matching metalwork, tying the koshirae fittings into a unified theme.

The saya is matte black lacquered hardwood measuring 29.5 inches, decorated with gold dragon engravings that run from the koiguchi toward the kojiri. The black-and-gold sageo cord is braided and knotted at the kurikata, adding a second layer of color contrast against the dark lacquer. The matte surface reduces reflection and keeps the visual weight on the engraved gold imagery. If the color pairing interests you, the Gray T10 Carbon Steel Japanese Samurai Swords collection includes additional koshirae configurations at this steel grade.

At 41 inches overall and 4.4 lbs, this katana is proportioned for display mounting or shelf presentation. The koshirae-style assembly - wave tsuba, dragon saya, brown tsuka - makes it a coherent visual piece with consistent Japanese aesthetic references throughout.