... 3.Mosfet technology 4.ISO 9001:2000 5.Environment-friendly Small size solid high-frequency heating power (super audio power) ... 400-3000 30-150 0.3 Equipment is mainly USES:Drill, cut teeth, turning, planer knives, chisel bit tools, measuring ... kong, stone blades, serrated, carbide cutting tools, roller, edge grinding wheel welding heat; Rolling straight handle manual twist drill, pliers, wrench, screw ...