These are the technical specifications:

• Sugata (Blade style):
  • Hand-forged curved blade with a Bohi (groove) and Chu-Kissaki (tip).
  • Folded steel :
    • C45 = AISI / SAE / ASTM ( USA ) No. 1045.
    • C55Si7- (USA: steel 1095)
    • C105 W2 - DIN 1.1645 = AISI / SAE / ASTM (USA)  No.W1.
  • 13 times folded to achieve ca. 8192 layers. Traditional clay-wrapping technique for differential hardening. There are beautiful hada (grain in steel, pattern of folding the steel) in the blade. The hardness of its Mune is ca 43° and the Ha (blade edge) is ca 60° HRC Rockwell. The blade spine is iori-mune, the edge is without Niku. (The blade has got a flat and cutting sharp edge).
  • Dimensions:
    • Nagasa (blade length): ca. 20 inch.
    • Nakago (tongue) with Mei (inscription) according to the tradition: WKC and year of production.

KOSHIRAE

• Kashira (Cap):
  • Beautifully carved from Edo period. Carbon steel (C45= AISI / SAE / ASTM ( USA )  No. 1045). Steel oxidized, black colored.
• Tsuka (Grip):
  • Wood grip, adapted to the tongue. Length ca. 20,5 cm.
• Tsuka-ito (handle wrap):
  • Pure silk. Tight.
• Samé:
  • Real white ray skin.
• 2 Menuki:
  • Brass, hand-polished, gold-plated. Flower shape. One each side, traditional mounting of Menuki.
• Habaki:
  • Brass. Made in 1 piece.
• Seppa:
  • Copper.
• Mekugi:
  • Bamboo wood, based upon the traditional method to seat the pins. The mekugi-ana is drilled diagonal and conical into the tongue.
• Tsuba (Guard):
  • Carbon steel (C45= AISI / SAE / ASTM ( USA )  No. 1045), hand-polished. Steel oxidized, black color. Leaf and ginger theme from Edo period.
• Saya (Scabbard):
  • Selected wood. Black lacquered with samé around the top part. Curved according to the Sori. The Koi-guchi (mouth piece) is made of buffalo horn. Saya with kurikata and 2 shitodome to hold the Obi.
• Sageo:
  • Brown white (cord used for tying the Saya to the Obi - knob on the Saya).
• Weight:
  • ca. 17.63 oz. without saya.
• Included Accessories:
  • Soft protective cloth bag with nice colourful embroidery.