1、Suitable for grinding, deburring and shaping of metal parts, wood components, rubber tires, casting surfaces. 2、High quality steel movement,very reliable in use. 3、Fast speed, smooth running and wear resistance. 4、High no-load rotation speed of it reaches 2000rpm. 5、Adjustable chuck size range from 18~6.35mm,very practical in use. Features: Suitable for grinding, deburring and shaping of metal parts, wood components, rubber tires, casting surfaces. High quality steel movement,very reliable in use. Fast speed, smooth running and wear resistance. 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㎡/min Chuck Size: 3.18~ 6.35mm/ 0.12~ 0.24inDisk Diameter: 2 inchPneumatic Consumption of Air Mill: 4cfm Air Inlet Connection:1/4'' BSP(with American Pneumatic Quick Connector)Applicable Sandpaper Size: 50mm Package List: 1 x Main Unit 1 x 1/4'' Air Inlet (with American Pneumatic Quick Connector) 2 x Wrench 1 x Chuck 1 x Grinding Disc Connecting Rod 1 x Rubber Tray 2inch 1 x Wool Grinding Wheel 2inch 1 x Zirconium Steel Louver Grinding Wheel 2inch 80Grit 1 x Scouring Cloth Wheel 2inch 400Grit 1 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.