Specifications: Model: UOW-11-30 Air Consumption - ft3/min: 12.5 Air Inlet Thread N.P.T. - in: 1/4 Free Speed - rpm: 135 Max Hex Socket Size - in: 5/8 - 1 3/16 Max Hex Socket Size - mm: 17 - 32 Max. Torque - ft-lb: 23.14 Max. Torque - Nm: 31.36 Noise Level - dB(A): 75 Overall Length (approx) - in: 13.6 Overall Length (approx) - mm: 347 Weight - lb: 5.5