... work pieces. Detail applications are stated as follows: 1. Quench for various hardware and tools, such as plier, wrench, hammer, ... ax, screwing tools and shear (orchard shear).2.Quench for various automobile and motorcycle fittings, such as crankshaft, connecting rod ... gear and axes.4. Quench for machine tools, such as lathe deck and guide rail.5. Quench for various hardware metal parts and ...