Richardson Sheffield Cucina Set of 6 Steak Knives are a Precision taper ground blades manufactured using only the finest Chrome Molybdenum Vanadium high carbon stainless steel slow to blunt, easy to sharpen. Premium Rockwell rating for material hardness of 55HRC. Superbly made full-tang riveted handles for superior strength and durability, with the metal bolster giving a centre of balance and added strength A luxury, premium knife, famous for its heritage and superb construction, and used by professional chefs all around the world.