FSYAO 18V 1/2 inch cordless impact wrench-brushless, 350 ft-lbs maximum torque, 4-speed adjustment, automatic start and stop.(Main unit only, no battery). - Amazon.com
Milwaukee M18 FUEL 1/2" High Torque Impact Wrench w/ Friction Ring 2967-20
Craftsman 1/2 in. Square Corded Impact Wrench Kit 7.5 amps 2700 ipm 450 ft./lbs. Red - Walmart.com
FSYAO 18V 1/2 inch cordless impact wrench-brushless, 350 ft-lbs maximum torque, 4-speed adjustment, automatic start and stop.(Main unit only, no battery). - Amazon.com
Milwaukee Tool - M18 FUEL with ONE-KEY High Torque Impact Wrench 3/4" Friction Ring Kit - Murdoch's