With a brushless motor, this DEWALT DCH273B 20-Volt Cordless Rotary Hammer has long-lasting run time and great durability. for user comfort, this rotary hammer has SHOCKS Active Vibration Control. with protections against dust inhalation, vibration and loss of tool control, this tool delivers performance you demand and safety you need. 2.1 joules impact energy provides corded power without the cord Retractable utility hook for convenient hanging and storage Includes 360° side handle and depth rod SDS plus chuck Brushless motor for extended runtime and durability Shocks - active vibration control reduces vibration felt by the user at the handles, a perform and protect feature Optimized ergonomic design provides exceptional overhead drilling experience Factory-set clutch reduces sudden, high torque reactions if bit jams.