... electric, hydraulic, pneumatic components, air distribution and other mechanical metal parts Motorcycle surface, bore, in part or in whole quenching, ... parts, the Quenching for surface, of inside bore or part or for the whole. for example :Quenching for hammer knife. shear. ... DRILL (change to high frequency) Carbide cutting tools weld, for example: Tuning tool, Milling cutter, Planning tool, Diamond ...