1/2 in. Aluminum Air Impact Wrench, Twin Hammer, 585 ft. lbs.
20V 370 Ft-lbs Brushless Impact Wrench Kit, 1/2 Inch Cordless Electric Impact Gun, High Torque 3,400 IPM Impact Driver with 6 Pcs Drive Impact Sockets, 2.0Ah Battery, Fast Charger, and Tools Bag - Walmart.com
Amazon.com: Performance Tool W50080 1/2-Inch Drive and 110-volt Impact Wrench : Tools & Home Improvement
Ingersoll Rand 2235TiMAX 1/2” Drive Air Impact Wrench – Lightweight 4.6 lb Design, Powerful Torque Output Up to 1,350 ft-lbs, Titanium Hammer Case, Max Control, Gray - Amazon.com
Ingersoll Rand 231HA-2 Impact Wrench | 1/2" Drive | 8000 RPM | 590 Ft. - Lb. Max Torque