The Matco Tools 1/2" and 3/8" Drive Pneumatic Palm Impact Wrenches, Nos. MT2612PB and MT268PB, have a compact design at 3-5/16" long by 2-1/2" wide, and weigh 2.44 lbs. The tool's twin hammer reactionless mechanism allows for 400 ft-lbs of breakaway torque. Additionally, users can customize their experience with this wrench by adding an air swivel for increased access and maneuverability of the hose.