This professional Hercules 20V Brushless Cordless 1/4 in. Compact 3-Speed Impact Driver has a four-mode selector with speeds 1, 2, and 3, plus an Auto Mode for driving self-tapping metal screws without stripping the work material by ceasing impacts upon fastening completion, as well as auto-stops when loosening fasteners for more control. The impact driver is also built with a compact high-performance brushless motor that is 20% more compact* yet operates 50% faster,* delivering up to 2200 in. lbs. of max torque for the toughest fastening jobs. 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 overmold grip that makes all-day jobs easier.