Milwaukee 2763-22 M18 1/2" Inch Impact Wrench Superior performance: Delivers up to 700 ft-lbs of maximum fastening torque, up to 1,100 ft-lbs of nut-busting torque and up to 2X more runtime POWERSTATE Brushless Motor: Outpowers competitors yet runs cooler with no wearable components REDLINK PLUS Intelligence: allows the operator to choose between 2 fastening modes with Milwaukees proprietary DRIVE CONTROL feature. REDLITHIUM XC 4.0 Battery Pack: Provides superior pack construction, electronics and performance to deliver 2X more runtime 1/2 Inch Anvil with friction ring for fast, easy socket changes