... workpieces, such as bearing steel, die steel, gauge steel, tool steel, high-speed steel and other materials.FBS95001) Excellent wear resistance and heat resistance, uesd ... finishing of quenching workpieces, such as bearing steel, die steel, gauge steel, tool steel, high-speed steel and other materials.Delivery time: In 5 ... or refunded within a year. PCBN inserts for cast iron and hardened steel