The M18 Fuel 1/2" High Torque Impact Wrench with Pin Detent fromMilwaukee Tool is designed to provide users with up to 900 ft-lbs of fastening torque and deliver up to 1,100 ft-lbs of nut-busting torque when paired with the M18 Redlithium XC5.0 battery pack. Four-mode drive control gives users the most control over their fasteners, while the bolt removal mode allows users to have more control when removing fasteners by slowing to 750 rpm once the fastener is loose. The 1/2" pin detent anvil provides ideal socket retention. An integrated battery isolation system ensures a secure connection and controls vibration transmitted to the pack.