? Polycarbonate outer housing with soft rubber handgrip reducing chill and vibration with an overall weight of 0.54kg. ? Features adjustable air regulator for additional control and exhaust muffler to reduce noise emission. ? Supplied with hook-and-loop pad. Air Consumption: 4cfm Free Speed: 13000rpm Inlet Size: 1/4"BSP Nett Weight: 0.5kg Noise Power/Pressure: 100.3/89.3dB(A) Operating Pressure: 90psi Orbit Size: ?2.5mm Pad Size: ?75mm Thread Size: 5/16"UNF Vacuum Outlet: n/a Vibration/Uncertainty: 5.24/1.01m/s?