Features:Suitable for grinding, deburring and shaping of metal parts, wood components, rubber tires, casting surfaces. steel movement,very in use. Fast speed, smooth running and wear High no-load rotation speed of it reaches 2000rpm. Adjustable chuck size range from 3.18~6.35mm,very practical in use.Specification:Working Pressure: 90psi(6.2Bar)No-load Rotation Speed: 20000rpmAir Consumption: 0.2㎡/minChuck Size: 3.18~6.35mm/0.12~0.24inDisk Diameter: 2 inchPneumatic Consumption of Air Mill: 4cfmAir Inlet Connection:1/4'' BSP(with Pneumatic Quick Connector)Applicable Sandpaper Size: 50mmPackage List:1 x Main Unit1 x 1/4'' Air Inlet (with Pneumatic Quick Connector)2 x Wrench1 x Chuck1 x Grinding Disc Connecting Rod1 x Rubber Tray 2inch1 x Wool Grinding Wheel 2inch1 x Steel Louver Grinding Wheel 2inch 80Grit1 x Scouring Cloth Wheel 2inch 400Grit1 x Red Sandpaper Wheel 2inch 80GritNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.