Draper 65137 Storm Force 90 degrees Mini Air Die Grinder Low noise, low vibration grinder, perfect for grinding and polishing metal components especially in hard to reach areas. Fitted with a variable speed motor, rotating air inlet that prevents air - lines from kinking and soft grip handles for user comfort. Supplied with two open ended collet wrenches. Display packed. Collet size: 6mm Free speed: 20,000 rpm Operating air pressure: 90psi (6.2bar) Average air consumption: 7cfm (198L/min) Vibration level: 1.4m/s2 Min. hose size: 3/8" (10mm) Air inlet: 1/4" BSP Weight: 0.55kg