1/2" Driver-Drill with 2-speeds (0-600 and 0-1,900 RPM) delivers up to 480 in. Lbs. Of Max Torque 1/2" Driver-Drill features a compact design at only 7-1/4" long and weighs only 3.3 lbs. With battery for reduced operator fatigue Impact Driver with variable speed (0-2,900 RPM and 0-3,500 IPM) delivers up to 1,460 in. Lbs. Of Max Torque Impact Driver features a compact design at only 5-3/8" long and weighs only 2.8 lbs. With battery for reduced operator fatigue Ergonomically designed handles with rubberized soft grips provide increased comfort