... easy to install.Ranges of Application: Hardening/quenching categories:1. All kinds of gears, sprockets, shaft quenching;2. a variety ... , scissors, axes, hammers and other hand tools quenchingForging categories1. All kinds of bolt, nut hot forging;2 hot-rolled cannabis ... piece of diamond drill bit composite welding;2 of carbide blade, saw blade welding;3. All kinds of cutter, drill head, drill pipe, ...