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DRAPER 76094 5.2MM COBALT TWIST DRILL FOR HELICOIL THREAD REPAIR KITS
Expert Quality, a selection of metric-sized high speed steel straight shank drills (with 5% cobalt) for specifically drilling out damaged threads prior to insertion of a Helicoil insert. The addition of cobalt to HSS adds strength and wear resistance for longer life. For use with UNC and UNF Helicoil Thread Repair Kits. Display packed.