This 1" SDS Rotary Hammer Kit (D25262K) from DEWALT boasts 2.8 joules of impact energy for fast drilling and chipping speed. The SHOCKS Active Vibration Control helps reduce vibration felt in the handles, while the 8.0 amp motor offers incredible performance. The rotating brush ring delivers full speed/torque in forward and reverse. Plus, the integral clutch reduces sudden, high torque reactions if the bit jams.