Features: Great quality pneumatic random orbital sander with air regulator for speed control. Heavy duty with ball bearing construction for better vibration free performance. Compact light weight design with durable aluminum housing. Fast grinding speed up to 10000RPM and low vibration for swirl-free finishes. Easy to use with quick changing of polishing pads, woolen buffers and sandpapers. High precision metal cylinder rotor and front/rear plate for longer using life and less breakdown. Widely used for car, metal and wood waxing, buffing, polishing, sealing glaze in car body shops, metal work, furniture, etc. NOTE: 1. Clean air intake nipple before use, fill air oil (approx. 3 drops) into the air intake nipple to reduce the friction of the parts and briefly operate the machine. 2. Follow above mentioned steps before and after using the machine. This increases the machine's service life.