Specifications: Air Consumption - ft3/min: 10.5 Air Inlet Thread N.P.T. - in: 1/4 Capacity (Nominal Bolt Size) in: 1/4 Capacity (Nominal Bolt Size) mm: M6 Center To Outside - in: 15/16 Center To Outside - mm: 24 Free Speed - rpm: 8500 Hex Drive - in: 1/4 Hex Drive - mm: 6.35 Noise Level - dB(A): 92 Overall Length - in: 6 45/64 Overall Length - mm: 170 Weight Less Socket - kg: 1.00 Weight Less Socket - lb: 2.20