Tojiro DP are famous for their excellent steel and great value. This line of Tojiro knives are clad knives which means they take a piece of high quality VG-10 steel and sandwich it between an outer core of softer, stainless steel. This gives the user the best of both worlds. The knife does not rust as easily as most carbon steel knives and it takes a great edge. The core steel has a 60° Rockwell Hardness. We highly recommend these knives for people that want the best bang for their buck. They are exceptional knives that out perform other knives at twice the price.