Used for cutting all kinds of copper, aluminum, Stainless steel, titanium, ceramic, ... the grade. K10: Wear resistance. high bending strength .high resistance to bonding ,high thermal strength machining of refractory alloys , stainless steel, and ... manganese steel .etc K30: High wear reisistance , high bending strength , used for disc saw blades in electrical line. Dimesion Grade Outer diameter ...