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 - Amazon.com
RIDGID 18V Brushless Cordless 1/2 in. Impact Wrench Kit with 4.0 Ah Battery and Charger R86012K - The Home Depot
Milwaukee 2988-22R M18 FUEL Auto Kit 1/2" and 3/8" Impact Gun Wrench Kit | eBay
Milwaukee 2555-22 M12 FUEL Stubby 1/2 in. Impact Wrench Kit