... metals parts, the Quenching for their surface, for inside bore of part or for the whole. for example :Quenching for hammer knife. shear. ... 3.WELD,DRILL Carbide cutting tools weld, for example: Tuming tool, Milling cutter, Planig tool, Diamond saw-toothed weld, Saw tooth ... weld, grinding machine tool welds, drill the machine tool welds blade tool welds. The other metals material reunites ...