Craftsman CMXPTSG1003NB ½-in 750 ft-lbs Air Impact Wrench, Red and Black - Amazon.com
Shop CRAFTSMAN V20 20-volt Max Variable Speed Brushless 1/2-in Drive Cordless Impact Wrench & 23-Piece Standard (SAE) and Metric Combination 1/2-in Drive Set 6-Point Impact Socket Set at Lowes.com