Chicago Pneumatic CP7731C - 3/8 Inch Air Impact Wrench, Pistol Handle, Max Torque Reverse Output 346 ft. lbf / 469 Nm, 9000 RPM, Single Hammer 8941077311Ultra Compact & Powerful Ultra lightweight and ultra compact, the 1 2" CP7731C CP7732C series is the stubby impact wrench that allows you to work in tight places with ease while being powerful with its high reverse torque. By choosing the ULTRA lightweight (2. 2 lbs. 1. 0 Kg) and compact (4. 3 in. 108 mm length) CP7731C CP7732C series, your daily tight applications in general maintenance can be met with ease thanks to its torque of 460 ft. lbs. 625 Nm