Specifications: Model: URW-12N Air Consumption - ft3/min: 25 Air Inlet Thread N.P.T. - in: 1/4 Free Speed - rpm: 150 Max Hex Socket Size - in: 7/8 Max Hex Socket Size - mm: 22 Max. Torque - ft-lbs: 43.38 Max. Torque - Nm: 58.8 Overall Length (approx) - in: 15.6 Overall Length (approx) - mm: 397 Weight - lb: 5.9