The ultimate combination of high carbon steel, Chrome, Molybdenum, Vanadium, and Tungsten Carbide makes the blade harder and more durable than most other brands. Resistant to rust and stains. Razor-sharp straight-slicing edge and comfortable balance. Strong all purpose chefs knife for the professionals and cooking enthusiast alike. Hardness is between 59 and 61 degrees Rockwell C. Available in 9", 10.25", and 12.5"