Milwaukee 2755-22 M18 FUEL 1/2-Inch Compact Impact Wrench with Pin Detent Kit Powerstate Brushless Motor delivers 220 ft-lbs. of fastening torque Redlink Plus Intelligence prevents damage to the tool and battery due to overloading or overheating Redlithium Batteries deliver more work per charge and more work over the life of the battery 4-Mode Drive Control provides greater control over output speed and power Utilizes a Pin Detent design for maximum socket retention