Moritaka Aogami #2 Honesuki 150mm. These knives are hand made by the Moritakas and are made from blue steel (also called aogami steel). HRC of about 61 and a kurouchi finish. The steel is a little softer than the supreme series and consequently a little easier to sharpen and somewhat more tough. Less chipping but won't hold as steep an edge as the supreme series which uses harder steel. This knife now comes with a nice rosewood octagonal handle with an even edge grind so they work well for both right and left handed users.