The Bosch 18V 1/2 in. hammer drill is engineered for tough jobs, with next-gen convenience and CORE18V power. The Bluetooth connectivity allows you to customize tool settings on a connected device. The compact CORE18V 4.0 Ah Li-ion battery provides longer runtime. The KickBack Control reduces the risk from sudden rotational torque reaction in a bind-up scenario. The EC Brushless efficient motor delivers 535 In. lbs. of torque with a long lifetime. The Precision clutch with 20+1 settings provides driving accuracy for reduced fastener damage. The cutting-edge cell design engineered to improve performance. The Bosch-exclusive CoolPack 2.0 technology. The upgraded all-metal chuck for more durability, along with first-rate bit retention. The Drill-area LED with feedback illuminates dark zones and provides tool-status change feedback.