Specifications: Air Consumption - ft3/min: 34.0 Air Inlet Thread N.P.T. - in: 1/4 Average Air Consumption - m3/min: 0.95 Capacity (Wheel Size)- in: 4 Capacity (Wheel Size)- mm: 100 Free Speed - rpm: 13600 Noise Level - dB(A): 84 Overall Length (approx) - in: 9 11/16 Overall Length (approx) - mm: 246 Rated Horse Power - w: 712 Type of Spindle: OUT Weight - lb: 2.9