The M18 FUEL™ 1/2" High Torque Impact Wrench with Pin Detent Kit features the most powerful cordless wrench in its class, delivering up to 600 ft-lbs of maximum fastening torque, up to 2X more runtime and up to 3X longer motor life. The POWERSTATE™ Brushless Motor outperforms competitors with constant power output, and the Milwaukee® designed impact mechanism delivers up to 600 ft-lbs of maximum fastening torque. The REDLITHIUM™ XC 5.0 Extended Capacity Battery Pack delivers more work per charge and more work over pack life than any other battery. It features an onboard fuel gauge to help you monitor the charge more accurately, so there’s less downtime on the job. REDLINK PLUS™ Intelligence allows the operator to choose between 2 fastening modes with Milwaukee’s proprietary DRIVE CONTROL™ feature and ensures maximum performance and protection from overload, overheating and over-discharge.This 18-volt lithium-ion FUEL™ High-Torque Impact Wrench offers superior socket retention with a 1/2" pin detent anvil. You’ll get ultimate comfort during extended use with the new contoured soft grip. The kit includes 2 REDLITHIUM™ XC 5.0 Extended Capacity Battery Packs, a multi-voltage charger and a carrying case.