DEWALT DCF899M1 20V MAX XR Brushless High Torque Impact Wrench with Dentent Pin Anvil, 1/2" Compact design and lightweight at only 7.2 lbs Heavy Duty 1/2" Anvil with detent pin Up to 700 ft-lbs of max torque LED light with 20 second delay for increased visibility Maximum Speed (rpm):1900