M18 FUEL™ w/ ONE-KEY™ High Torque Impact Wrench 3/4" Friction Ring Bare Tool
Milwaukee 2656-20 M18 18V 1/4 Inch Lithium Ion Hex Impact Driver with 1,500 Inch Pounds of Torque and LED Lighting Array (Battery Not Included, Power Tool Only) - Amazon.com
Milwaukee M18 18V Lithium-Ion Compact Brushless Cordless 1/4 in. Impact Driver (Tool-Only) 3651-20 - The Home Depot