Kobalt 24-volt Max Variable Speed Brushless 1/2-in Drive Cordless Impact Wrench (Bare Tool) at Lowes.com
M18 FUEL™ w/ ONE-KEY™ High Torque Impact Wrench 1/2" Friction Ring (Tool Only)
DeWalt 20V Max XR High Torque 1/2"" Impact Wrench Kit
20V Brushless Cordless, 1/2 in. High-Torque Impact Wrench with Extended Anvil - Tool Only
Aiment Cordless Impact Wrench 1/2 inch, 550 Ft-lbs Max Torque(700NM), 21V 3000RPM Brushless Power Impact Gun, 4.0Ah Li-ion Battery with Fast Charger, 6Pcs Sockets, Electric Impact Driver for Car Home - Amazon.com
36V 1/2 Inch Impact Wrench (Tool Body Only) | Metabo HPT WR36DBQ4