Osoraku-zukuri style tanto blades, A and B, with the steel construction "kobuse".
Blade A
Core steel
Relatively soft tamahagane pieces are selected. And the core steel is forged out after 12 time foldings.
Outer steel is forged out after 14 time foldings. It is hard and dense enough to become a sharp edge by proper tempering.
Core steel and outer steel are welded together to one block in Kobuse style construction, and roughly drawn out
The steel for tanto blade is cut out from the steel log. It is a tip end of the log.
Drawn out
Shaped by hammer work
Shaped by plane and files
Putting clay
Expecting an active choji pattern will come.
Just after the quenching work
You can see that the blade got some curvature.
Shaped up with the rough stones
Blade length 28.2cm, thickness at the base 7mm, width 3.2cm
Silver habaki
Polishing: the classical style (sashikomi style)
Blade B
Putting clay
Checking the hamon after the quenching work
Shaped up with the rough stones
Silver habaki
