The Carlyle Tools 3/8" Drive Stubby Impact Wrenches, No. CPTIWS38, is a compact tool built for tight spaces. Weighing only 2.2 lbs and measuring just 4-1/4" in length, it delivers up to 550 ft-lbs of breakaway torque. The variable speed throttle provides precise control, while the jumbo hammer mechanism offers powerful torque. With a positive touch comfort grip, one-hand forward/reverse mechanism, and a three-position speed regulator, this impact wrench is designed for ease of use.