The blades of these hanwei Japanes Swords are hand-forged and folded from high-quality carbon steel and differentially hardened with the traditional clay method. The folding of the steel ensures that the steel is more homogeneous and this gives the blade a traditional atmosphere. The folding process provides a beautiful organic Hada or layer pattern. Of course each katana is full tang and a functional sharp shinken (battle ready). The tamahagane katana is made of iron sand and a true tribute to samurai tradition.