The Mighty Seven Heavy Duty Needle Scaler, No. SN-1268, features a heavy duty motor that delivers 4,600 bpm, an 1-1/8” stroke length, and allows easy surface preparation or removal of paint, rust or weld slag. The kit includes a needle scaler attachment with 19 high-tension steel descaling needles and a weld flux chipping hammer chisel. It has a one-year warranty.