Milwaukee 2767-20 M18 FUEL High Torque 1/2" Impact Wrench with Friction Ring - Amazon.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
36V MultiVolt™ Brushless 3/4 Inch Impact Wrench (Tool Body Only) | Metabo HPT WR36DAQ4
ARI2060 Li-ion 18V 1/2" Super Torque-Impact Wrench with Digital Clutch