The Shun Blue Steel series was developed in partnership with award-winning chef Chris Cosentino, known for his "nose to tail" philosophy of using the whole animal. These traditional Japanese knives feature a core of blue steel - a fine-grained carbon steel favored by professional chefs for its blazing sharpness - that is encased between two layers of stainless steel. This utility/butcher knife excels at breaking down larger pieces of meat into cuts for cooking, and makes quick work of separating meat from bone. The size and shape also makes it an ideal all-purpose utility knife for the kitchen. Japanese san mai construction features carbon steel between two layers of stainless steel, providing the ultra-sharpness of carbon steel with the easier maintenance and added corrosion resistance of stainless steel. Blue steel, hardened to 61 Rockwell, is a super-hard, fine-grained carbon steel known for taking and maintaining an extremely sharp edge ("blue" refers to the paper the raw steel comes wrapped in). Mirror-polished blade has a bead-blasted edge where the two steels meet, showcasing the layered construction. Traditional Japanese octagonal handle is made of gray PakkaWood.