Draper Storm Force®, low noise, low vibration soft-grip 1/2 air ratchet. Each air air is manufactured from lightweight composite plastics, delivering a low noise and low vibration user experience, ideal for use in professional workshops. The air ratchets have added features including a variable speed control, rotating rear exhaust and rotating air inlet, which helps prevent the airlines from tangling. The composite body construction technique, provides a lightweight but rugged tool that reduces operator fatigue and the 'cold sink' effect. A great air powered ratchet, ideal for the professional workshop. Ultimate torque ... 66lb-ft (90Nm) Free speed ... 160r/min Operating air pressure ... 90psi (6.2bar) Average air consumption ... 5cfm (142L/min) Minimum hose size ... 3/8 I.D Air inlet ... 1/4 BSP