| PRODUCT SPECIFICATIONS AND MATERIALS | |
| Overall Length | 40.6 inch / 103 cm |
| Nagasa Length | 28 inch / 71 cm |
| Handle Length | 10.4 inch / 26.5 cm |
| Motohaba(width near habaki) | 3.2cm |
| Sakihaba(width near yokote) | 2.3cm |
| Sakikasane(thickness at yokote) | 4mm |
| Kasane(thickness at habaki) | 7mm |
| Sori(curve) | 1.9cm |
| Blade Material |
T10 steel caly tempered |
| Handle Material | Full Genuine Ray skin wrapping+Hard wooden+Brown silk ito+Brass fittings |
| Saya Material | Hard wooden+Fully iron wrapping+Brass fittings |
| Tsuba Material | Brass |
| Habaki and Seppa | Brass |
| Kissaki Shape | CHU-KISSAKI |
| Blade Shape | SHINOGUI-ZUKURI |
| Weight | 2.0kg |
Tamahagane, which called "jewel steel" or "precious steel" in Japanese, is the best steel for using in the Japnaese steel which forged in the most traditional Japanese way.
Tamahagane is made by smelting iron sand in a clay furnace called "tatara" and mixing it with charcoal to produce steel with various carbon content. This very laborious process takes as much as 3 days. After the smelting process, the tatara is broken and the steel bloom or "kera" is broken and swordsmiths segregate and collect the steels with various carbon contents.
The blade made in tamahanage requires a much higher level of expertise from the swordsmith.Also,
will laminate the different types of steel collected from the kera to create a sword which has a hard edge, soft core and springy sides.
The blade of this sword has been hazuya-jizuya polised to bring up the hamon.It is a complicated way to do that and takes several weeks to do the entire polishing process.
