... picks, knives, scissors, gardening tools and other tools of the quenching, shaft, pin, gears, sprockets, automobile and motorcycle spare parts (forks, rod, ... 7) Veryfast temperature rise, reducing the surface oxide layer and the workpiece deformation degree8 )Environmental protection ,no noise, no ... , blankTemperature protection 50 degrees High Frequency drill bit and splined shaft quenching 80KW