... inserts, shims, wear parts, drawing dies,drilling bits,cold forging dies,bars, balls,burrs ,PCD blades,PCBN blades,ceramic ... cast iron,stainless steel,heat resistant steel,nickel based and titanium alloy and other materials .It is usually made into twist ... processing and thread processing ,but especially suitable for machining titanium alloys,heat-resistant alloys,gray cast iron,stainless steel, ...