DEWALT XTREME 12-volt Max Variable Speed Brushless 3/8-in square Drive Cordless Impact Wrench (Tool Only) in the Impact Wrenches department at Lowes.com
DeWalt DCF921 ATOMIC 20V Impact Wrench Video Review - STR
20V MAX* XR® 1/2 In. High Torque Impact Wrench with Hog Ring Anvil | DEWALT