Built with a high-performance brushless motor, this HERCULES 20V Brushless Cordless 1/2 in. Compact Variable Speed Hammer Drill/Driver delivers 80% more power* at 1200 in. lbs. of max torque to drill through tough concrete and masonry jobs. The two-speed transmission and 14 clutch settings allows the user to match drilling speed and power to the application for accuracy and precision into all materials. An all-metal JACOBS 1/2 in. ratcheting chuck provides a tight grip on your bits, so you won't have to stop and adjust in the middle of your work. With all-metal gear construction, this tool is heavy duty and ready to withstand tough conditions on the jobsite. Feel the comfort and reduced fatigue of the well-balanced tool with textured over-mold grip that makes all-day jobs easier.