1、MULTI PURPOSE: This pneumatic grinder can be used for local polishing, removing welding points and rust spots on metal products, removing burrs on wooden products, car surface polishing, etc. 2、LOW NOISE: The air sander grinder is equipped with noise reduction device and can ensure low vibration and noise during operation. 3、ALLOY STEEL MADE: Air angle grinder is made of alloy steel, with high strength, hard to wear, impact resistant, ensuring a longer service life. 4、ERGONOMIC DESIGN: The pneumatic polishing machine adopts ergonomic design, making it comfortable to hold and very suitable for long term project work. 5、COMPACT AND LIGHT: Industrial grade air grinder has a small size, light weight, easy to carry and operate, long hours of work will not tire you.