Specifications: Model: UX-ST800 Air Consumption - ft3/min: 12.3 Air Hose Size - in: 3/8 Air Inlet Thread N.P.T. - in: 1/4 Free Speed - rpm: 7,300 Overall Length (approx) - in: 7.7 Overall Length (approx) - mm: 195 Torque Range - ft lbs: 25 ~ 40 Torque Range - Nm: 35 ~ 55 Weight less Socket - kg: 1.7 Weight less Socket - lb: 3.8