Specifications: Model: URW-9N Air Consumption - ft3/min: 23.7 Air Inlet Thread N.P.T. - in: 1/4 Free Speed - rpm: 200 Max Hex Socket Size - in: 9/16 Max Hex Socket Size - mm: 15 Max. Torque - ft-lbs: 23.13 Max. Torque - Nm: 31.36 Overall Length (approx) - in: 15 Overall Length (approx) - mm: 380 Weight - lb: 5.0