This air sander is mainly used to grind and polish various surface such as paint, metal, wood, plastic, etc. It has low noise and high polishing efficiency. Features: 1. Housed by aluminum, this air polisher is wear resistant, durable and beautiful. 2. 4500rpm of rotational speed provides strong power to get polishing done more efficiently. 3. Motor with ball bearings for smooth and efficient operation. 4. Equipped with reversible handle for operation with both left hand and right hand. 5. Built-in exhaust muffler lower the noise while operating. Packing included 1 * Polisher2 * Wrench1 * Polishing Disc1 * Pneumatic Connector Specification Shaft Thread: 5/8"-11 Pneumatic Polisher-Motor with ball bearings for smooth and efficient operation.Air Polisher-Equipped with reversible handle for operation with both left hand and right hand.Hand Sanding Tool-Built-in exhaust muffler lower the noise while operating. Light and easy-to-handle air buffer fits standard ¼” air hoses for a perfect finish on different materials and applications. Ideal for restoring dull paint, removing rust, or fine scratches to reveal a beautiful gloss finish. Can be for Grinder. Humanized Design: Interchangeable side handle Comfortable grip, Suitabe for long time work. The variable speed of this tool allows for better control and better output.