Seesii Brushless Power Impact Wrench, Cordless, 1/2 inch Max High Torque 479 Ft-lbs(650Nm), 3300RPM w/ 2x 4.0 Battery, 6 Sockets,9 Drill,6 Screws for Car Home, WH700 - Amazon.com
DEWALT Variable Speed 1/2-in Drive Cordless Impact Wrench (Bare Tool) in the Impact Wrenches department at Lowes.com
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
20V Brushless Cordless 1/2 in. Ultra-Torque Impact Wrench - Tool Only