Description Air Drill ?10mm Reversible with Keyless Chuck ? Fully polished finish with exhaust through handle base for reduced noise emission. ? Unit features enclosed twin gear drive assembly. ? Rotor runs on high quality ball bearings for long life and reliability. ? Fully reversible drive with fingertip control set above trigger. ? Fitted with Jacobs keyless chuck for fast bit changes. ? Contoured soft grip handle gives added comfort and control. Detailed Information Instructions Parts Model No: GSA241 Chuck Size: ?10mm Free Speed: 2200rpm Air Consumption: 4.5cfm Operating Pressure: 90psi Inlet Size: 1/4"BSP Weight: 1.2kg Noise Power/Pressure: 105.66/94.66dB(A) Vibration/Uncertainty: 1.73/0.4m/s?