Tsunesaburo: Stable high quality, The plane is made from high class steel, mainly the finest blue steel,
for core blade material and soft iron carbon steel for base blade material. The processes are all done by hand(called Koshiki hizukuri tanzo). in more detail
for core blade material and soft iron carbon steel for base blade material. The processes are all done by hand(called Koshiki hizukuri tanzo).