Feature:1. Suitable for polishing and polishing of steel plate, metal products, furniture, wood products, aluminum alloy, ship, shoes and manufacturing industries, etc. 2. Equipped with hook and loop fastener that should be used with suede sandpaper. 3. Before use, need to drip 2-3 drops of air oil lubrication at the inlet.Uses air for power, energy saving and environmental . 4. The self-contained air regulating valve of the machine can adjust the speed of the machine according to the usage and the need. 5. The speed of the machine is fast and the grinding force is strong, and the work efficiency is high. Specification:Item Type:Air Angle Sander Disc Diameter:3in 2in No-Load Speed:15000rpm Air Pressure:90PSI Air Inlet Size:1/4in Recommended Air Pipe Inner Diameter:8mm Thread:M6x1.0 Package List:1 x Air Angle Grinder(With 2in Disc)1 x 3in Disc1 x Connector1 x Rod