Selectable Modes and Power: With 7 selectable welding modes (spot welding straight pull, round gasket welding, long gasket welding, wave line welding, stud welding, carbon rod to close the fire, single-sided spot welding) and 9 welding power levels, this dent puller machine allows you to freely choose depending on the condition of the bodywork for more precise dent repair of different degrees and better results.