Features 10,000 RPM for fine polishing: 10000 RPM ultra high speed, bring high working efficiency, save labor and time, suitable for all kinds of fine mirror polishing. Wide Application Working pressure 0.6-0.8MPa, the air inlet size is 1/4", versatile and applicable to different models. FOR INDUSTRIAL USE: The chassis size for 5 inches (125mm), the yaw diameter is 5mm, designed for industrial grade high strength use, can easily replace sanding pad and sandpapers. ENERGY SAVING Random orbital sander using compressed air as power, energy saving and environmental protection. 【No Falling】5 inch hook and loop type grinding disc, which can be used with suede sandpaper for smoother grinding and not easy to fall off. Specification: Item Type: Air Random Orbital Sander Free speed: 10000rpm Frame size: approx. 125 mm/5 inches Shoelace diameter: approx. 5mm / 0.2in Working pressure: 0.6-0.8MPA Air inlet size: 1/4" Package list: 1 x Mill. 1 x key. 5 x sandpaper. 1 American style gasket 1 x user manual (English language not Small note: Please pay attention to the safety protection before use. Package List 1 x Grinder 1 x Wrench 5 x Sandpaper 1 x Style Joint 1 x User Manual