The HD line from Konosuke has the same dimensions as the White #2 line, but is made from proprietary semi-stainless steel to provide that extra protection from discoloration. Care does need to be taken to prevent rusting, but these knives take on a great patina which will also help to curb discoloration. This 270mm Gyuto is the most popular sized knife amongst professional cooks. It provides the perfect length when cutting large amounts of produce or meats. It is the all-around multi-tasking blade and great for so many jobs. Heat-treated to an HRC of 61, these blades are attached to a classic western-style handle constructed of black Pakka wood. As with all of our Konosuke knives, this comes with the option of a Saya.