DDF iohEF Kitchen Knife, Chef's Knife In Japanese Stainless Steel Professional Santoku Cooking Knife, 7 Inch Non-slip Ultra Sharp Knife with Ergonomic HandlePremium Japanese Stainless Steel Chef's Knife: This chef's knife is made of professional Japanese stainless steel with a carbon content of 0. 45% to 0. 55% and a chromium content of 14% to 15%. After professional design, the blade is very sharp and durable, and the hardness can reach up to 58 Double Edged Blade Design: Double Edged blade design so that it is suitable for both left handed and right handed people. The blade edge angle is 15 degrees per