Specifications: Model: UOW-11-10 Air Consumption - ft3/min: 12.5 Air Inlet Thread N.P.T. - in: 1/4 Free Speed - rpm: 400 Max Hex Socket Size - in: 1/4 - 7/16 Max Hex Socket Size - mm: 7 - 12 Max. Torque - ft-lb: 9.4 Max. Torque - Nm: 12.74 Noise Level - dB(A): 75 Overall Length (approx) - in: 11.7 Overall Length (approx) - mm: 295 Weight - lb: 3.1