... high effiency 2.quick heating ,easy operate 3.consumption reduction 4.light weight Applications :Quenching: hammer, pliers, measuring ... tools, screwdrivers, picks, knives, scissors, gardening tools and other tools of the quenching, shaft, pin, gears, sprockets ... Veryfast temperature rise, reducing the surface oxide layer and the workpiece deformation degree8 )Environmental protection ,no noise ...