Chicago Pneumatic Nutrunner: 1 in Square Drive Size, Through Hole, 660 ft-lb Fastening Torque, Steel

Pistol-grip air-powered torque wrenches (sometimes called nutrunners) are held in the hand in the same way as a drill. They are commonly used for tightening nuts on vertical surfaces. The square drive on the end of the tool holds sockets of different sizes. A reaction bar on the side of the tool allows two-handed operation for bracing the tool in high-torque applications and preventing counter-rotation that can cause operator strain. The trigger throttle is operated by pulling the switch with the index finger.