Milwaukee 2767-20 M18 Fuel High Torque 1/2-Inch Impact Wrench with Friction Ring - - Amazon.com
Milwaukee M18 18V Lithium-Ion Cordless 1/2 in. Impact Wrench W/ Friction Ring (Tool-Only) 2663-20 - The Home Depot
Milwaukee M18 FUEL 18V 1/2 in. Lithium-Ion Brushless Cordless Impact Wrench w/ Friction Ring (2-Tool) w/ Two 6.0Ah Batteries 2767-20-2767-20-48-11-1862 - The Home Depot