Description At less than 4 in. in length, the Atomic DEWALT DCF850B 20V MAX* 1/4 in. Brushless Cordless 3-Speed Impact Driver can handle tight applications like narrow cabinetry or framing without the need for an additional tool. Though the DEWALT DCF850B Impact Driver is lightweight and compact in size, it does not sacrifice performance with its brushless motor that delivers up to 1,825 in-lb of torque and 3,250 rpm for driving large-diameter screws. Illuminate dim workspaces for enhanced visibility with the 3-LED on-board work light and keep your workflow consistent.