DEWALT XR Variable Speed Brushless 1/2-in Drive Cordless Impact Wrench (Bare Tool) in the Impact Wrenches department at Lowes.com
olmlmo Cordless Impact Wrench 1/2 Inch,Brushless Max 1000Ft-lbs(1300N.M) High Torque Impact Gun w/ 2 x 5000mAh Batteries,3 Variable Speed Trigger,Fast Charger, 4 Sockets,Tool Box - Amazon.com
Cordless Impact Wrench, UNTIMATY 1/2 inch Brushless Impact Gun, Max Torque 350 Ft-lbs(450N.m) Impact Wrench with 20V Brushless Motor, with 3.0Ah Li-ion Battery & 7 Sockets - Walmart.com
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
Ingersoll Rand 1/2 in. Drive Air Impactool 231G - The Home Depot