Specifications: Model: UX-80EC Air Consumption - ft3/min: 17.7 Free Speed - rpm: 2,500 Noise Level - dB(A): 80 Overall Length - in: 7.8 Overall Length - mm: 197 Piston Stroke - in: 1.2 Piston Stroke - mm: 30 Sq Drive Shank or Hex Bit Shank - in: 3/8 Torque Range - ft-lb: 14.7 - 33.2 Torque Range - Nm: 20 - 45 Weight less Socket - kg: 1.8 Weight less Socket - lb: 4.0