18 V 1/2" Drive MonsterLithium Cordless Impact Wrench Kit (Red) | CT9050K2 | Snap-on Store
You Need an Impact Gun in Your Toolbox
20V Brushless Cordless 1/2 in. High-Torque Impact Wrench - Tool Only
Cordless Impact Wrench 1/2 inch for Dewalt 20V Battery, 600 Ft-lbs (810N. m) Brushless High Torque Power Tool with LED Work Light and Belt Clip ( Battery Not Included) - Amazon.com
DEWALT Variable Speed 1/2-in Drive Cordless Impact Wrench (Bare Tool) in the Impact Wrenches department at Lowes.com