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
Kobalt 8-Amp 1/2-in Drive Corded Impact Wrench in the Impact Wrenches department at Lowes.com