WORKPRO 1/2" Drive Air Impact Wrench, Pneumatic Heavy Duty Impact Wrench, 880ft.lb Max Loosening Torque, 7500RPM, for Changing Tires, Auto Repair, Gift for Christmas, Birthday Anniversary - Amazon.com
DEWALT XTREME 12-volt Max Variable Speed Brushless 1/2-in Drive Cordless Impact Wrench (Bare Tool) in the Impact Wrenches department at Lowes.com