... insert: tungsten carbide, Non-ferrrous metal material, alloy. Used in drill bit, tip and inserts for cutter tungsten carbide insert :Material ... condition: unground, polished, ground availableAvailalbe for drill bits, tips, inserts, slurr for all kinds of cutting tools in CNC, machines, mine, oil ... .688.51710 Remark:1. 1N/mm²=145.038PSI cemented carbide cutting tool inserts