This is a traditional Japanese knife totally handmade. It is rigid with very little flexibility. Unlike a traditional knife, it has a much stronger blade. The composition of its steel is made of an alliance of iron and carbon, which gives it a certain resistance. It will be sharper and firmer if the carbon content is high. The Japanese blades have a rate between 0.45% and more than 1%.
Its blade is shaped like an isosceles triangle. It rarely exceeds 18 cm, to allow a certain dexterity in its handling. It is often offered in 4 mm thickness for use in torsion. It has an elevation on the heel. This triangular shape is produced with an unbelievable precision.
The handle of this knife is usually crowned with a buffalo horn ring. It is always made with very precious wood varieties like magnolia or ebony.