Expert Quality, lower noise, low vibration high torque twin hammer action with easy forward and reverse one-hand operation. Rotating air inlet prevents air line tangling. The composite body makes this a lightweight but rugged tool which reduces operator fatigue and the 'cold sink' effect. Specifications: Air Inlet - 1/4" BSP, Average Air Consumption - 4.4cfm (125L/min), Free Speed - 7,000 rpm, Min Hose Size - 3/8" (10mm), Operating Air Pressure - 90psi (6.2bar), Square Drive - 1/2", Ultimate Torque - 813Nm (600ft/lb), Vibration Level - 2.8m/s2, Weight - 2.2kg.