Tsuchimon Knife for Sushi Masters Blade The blade core is made of Japanese VG10 'super stainless' steel clad by high quality stainless steel from both sides. The hammer marks on the upper part of the blade make its look very artistic. The KATANA sword wave line is clearly observed on the blade. It has an extremely sharp cutting-angle with the hardness rating of HRC61 on the Rockwell scale. Handle The handle is made out of FDA-approved black Canvas-Micarta, which is an enormously solid and durable material made of resin and linen. This material lasts decades. Different from other handle material, it is non-shrink and odorless. It is polished perfectly and fastened tightly by two stainless steel rivets. It is supported by the high quality 18-10 stainless steel inside, which gives the knife outstanding stability and balance. The Yaxell logo is engraved on the grip end in a noble style. The shape of the handle allows tireless working in all cutting techniques.