Genius Tools 1/2" Dr. Air Impact Wrench, 500 ft. lbs. / 678 Nm - 400500
Impact Wrench 1/2" Dr. 500Ft/Lbs 7000RPM - Walmart.com
JET 3/8 in. Drive 500 ft./lb. Compact Impact Wrench at Tractor Supply Co.
FSYAO 500 ft-lbs maximum torque, 20V 1/2 inch cordless impact wrench-brushless, 4-speed adjustment, automatic start and stop.(Host only/Without battery). - Amazon.com
Elikliv Cordless Impact Wrench 1/2 inch, 500Ft-lbs Max Torque(650N.m), 21V 3000 RPM Brushless Power Impact Gun, 4.0Ah Li-ion Battery with Fast Charger, Electric Impact Driver for Car Truck Tires Home - Amazon.com