The blade of this knife consists of an exceptionally high-grade non stainless steel with a content of at least 1% carbon. By means of this, we attain a much higher hardness of 60 HRC (Rockwell hardness level) with this knife, when compared to the appox. 57/58 HRC of our conventional carbon steel knives. This hardness gives the blade a higher degree of sharpness and longer edge holding ability.