Mid-Torque Impact Wrench, Drive Size 3/8 in Square, Maximum Torque 600 ft-lb, Voltage 18V DC, Series M18 FUEL, Brushless Motor, Handle Type Pistol Grip, Tool Weight 3.5 lb, Clutch Style Impact, Features Best Power To Weight Ratio, Best Access in Tight Spaces, Faster Removal Speed, Comes with One Mid-Torque Impact Wrench, 4-Mode Drive Control