RYOBI ONE+ 18V Cordless 3-Speed 1/2 in. Impact Wrench (Tool-Only) P261 - The Home Depot
WORKPRO 20V Cordless Impact Wrench, 1/2-inch, 320 Ft Pounds Max Torque, 4Pcs Drive Impact Sockets, 2.0Ah Li-ion Battery with Fast Charger, Belt Clip for Easy Carrying - Walmart.com
Ingersoll Rand 1-inch Cordless Impactool Impact Wrench has 3,000 ft-lbs!
Milwaukee 2867-20 M18 FUEL 18V 1 Inch High Torque Impact Wrench - Bare Tool
20V Cordless 1/2 in. Impact Wrench - Tool Only
NEIKO 10878A 20V 1/2" Cordless Impact Wrench 1/2-Inch Chuck with Battery, Fast Charger and 4 1/2" Drive Sockets, High Torque Electric Impact Wrench Kit with Adjustable Torque Power, Impact Gun for Car -