7.0 Amp motor with 800 watts of input power combines powerful hammering with high-speed drilling 2.5 ft/lbs of impact energy, best in class for delivering high-speed drilling and chipping Quick-set bit system, makes replacing bits quick and easy Electronic variable speed control, gives the tool a no-load RPM between 0-1,150 3-modes of operation, hammer drill/hammer only and drill only for flexibility within a range of applications Push-button reverse switch, to back out bits with ease Mode selector dial, makes transitioning between modes simple and efficient Lock-on speed button for continuous operation reducing user fatigue Removable side handle (360 degrees) with depth gauge, improves control and ensures accurate drilling depth 5.3 lbs, one of the lightest and most compact (13.81 inches)rotary hammers in its class, for greater ease of use and maneuverability