Yoshikane's hand-forged and excellently heat-treated SLD series bring out some of the best performance from this steel: great cutting feel, good sharpen-ability, and excellent edge life. SLD ranges from 12-13% chromium content, right on the stainless / non-stainless boundary. It has excellent toughness, hardened to 64 HRC, and can be ground very thin without becoming chippy. In our opinion, these are some of the best nearly-stainless hand-forged knives. They are ideal for the professional or home cook who is looking for a great workhorse, long edge life, and easy sharpen-ability.