Specifications: Model: UX-500S Air Consumption - ft3/min: 8.8 Air Hose Size - in: 1/4 Air Inlet Thread N.P.T. - in: 1/4 Free Speed - rpm: 9,300 Noise Level - dB(A): 77 Overall Length (approx) - in: 9.4 Overall Length (approx) - mm: 239 Square Drive - in: 3/8 Torque Range - ft lbs: 11 ~ 19 Torque Range - Nm: 15 ~ 25 Weight less Socket - kg: 0.9 Weight less Socket - lb: 2.0