We have DEWALT D25551K 1-9/16-Inch Spline Rotary Hammer Kit with Product Detail 11.0 Amp motor delivers high out put and overload protection Electronic variable speed allows the user to control the speed of drilling and chipping 7.3 ft-lbs of impact energy provides fast drilling and powerful chipping Rubber grip helps reduce the level of vibration felt by the user Spline tool holder is compatible with all spline drive bits Rear handle mount means less bending over when using tool in down drilling applications . The "DEWALT D25551K 1-9/16-Inch Spline Rotary Hammer Kit" is best product for you. We recommended DEWALT D25551K 1-9/16-Inch Spline Rotary Hammer Kit