... , alloy. Used in drill bit, tip and inserts for cutter tungsten carbide insert :Material: virgin and green, all kinds ... unground, polished, ground availableAvailalbe for drill bits, tips, inserts, slurr for all kinds of cutting tools in CNC, machines ... , mine, oil, transportation, medicine, space etc. industriesCobalt Binder GradesGradeBinder (Wt %) ...