Ingersoll Rand, 2235QPTIMAX, Air Impact Wrench, Tool/Kit: Bare Tool, Series: 2175, Pin Drive, 1/2 in Drive, 1220 bpm Blows per Minute, 870 ft-lb Forward/900 ft-lb Reverse Torque, 8500 rpm Speed, 25 cfm Air Flow, 1/4 in NPT Air Inlet, 3/8 in Minimum Hose, Composite Housing Material, Pistol Grip Handle, 88.7 dBA Sound Level, 7.6 in Overall Length, 7.2 in H x 2.9 in W Dimensions