EIKASO is a manufacturer based in Solingen, Germany, specializing in the production of professional knives for meat and fish processing. Their butcher knives and fish filleting knives are made of Solingen stainless steel 1.4116, which contains 0.5% carbon and 15% chromium. The steel is hardened up to 57HRC. Eikaso knives with a good balance of toughness and stiffness and designed specifically for professional butchers, fish processors, as well as hunters and fishermen. Most meat knives have three flexibility classes: rigid, medium (semi-flexible) and flexible. So you can choose an Eikaso knife that suits your taste and work style.