20v, max xr,1/2″, lithium ion brushless high torque impact wrench kit with detent pin anvil, up to 700 ft/lb max torque &1200 ft/lb max breakaway torque, compact design, multi-speed control for a variety of applications 0-400/1,200/ 1,900 rpm, 1/2″ anvil with detent pin, led light with 20 second delay for increased visibility, includes: 5.0 ah battery & multi voltage charger.