... stable performance. Small size solid high-frequency heating power (super audio power)Use IGBT power frequency multiplier circuit, innate Switzerland drive circuit, it ... 400-3000 30-150 0.3 Equipment is mainly USES:Drill, cut teeth, turning, planer knives, chisel bit tools, ... edge grinding wheel welding heat; Rolling straight handle manual twist drill, pliers, wrench, screw and other kinds of tools heat ...