Yoshihiro Stainless Clad Nashiji Ginsan High Carbon Stain Resistant Steel Santoku Multipurpose Knife (7'' (180mm) & Saya) Our Nashiji Stainless Clad Ginsan series is exceptionally forged with stainless steel cladding to create a Nashiji finish and provides for a characteristic look and a rustic aesthetic to the blade. Ginsan-Ko steel is forged by our master artisans to create traditional Japanese knives of the highest quality that can provide peace of mind in high paced work environment. It uses traditional methods of craftsmanship blended with modern metallurgy. It is a breakthrough in the incorporation of high carbon steel and stain resistant metallic elements. With a hardness on the Rockwell scale of 61-62, they offer a rare combination of traditional Japanese high carbon knives with stainless steel properties. A favorite among chefs in need of a high performance knife that delivers over long hours without the hassle of dulling or staining. The most versatile and one of the most popular knives that a cook can have today is a Japanese all-purpose chefs knife known as a Santoku knife. Santoku is Japanese for three virtues referring to the shape of the blade which comprises aspects of the traditional vegetable knife , Usuba, and Gyuto in one knife making it a favorite among chefs and cooks everywhere. Proudly made in Japan and not mass produced. This knife is complimented with a premium Western Style Handle that extends to the full tang of the knife and ergonomically welds to the hand for seamless use. An optional and recommended protective wooden sheath called a Saya can be purchased together, which protects the knife and adds to its appearance when not in use. Every knife from Yoshihiro is handcrafted by master artisans creating a unique one-of-a-kind work of art. Traditional Japanese knife making values a sharp edge, which requires attention and care. Sharpening and honing should be done with only water whetstones. Hand wash and dry only, and do so immediately if working with acidic ingredients. Do not use on objects such as bones, nutshells, and frozen foods.