Specifications: Model: URW-8 Air Consumption - ft3/min: 19.5 Air Inlet Thread N.P.T. - in: 1/4 Free Speed - rpm: 240 Max Hex Socket Size - in: 9/16 Max Hex Socket Size - mm: 15 Max. Torque - ft-lbs: 10.12 Max. Torque - Nm: 13.72 Overall Length (approx) - in: 14.2 Overall Length (approx) - mm: 360 Weight - lb: 4.0