Item Type: Air Random Orbital Sander_x000D_Free Speed: 10000RPM_x000D_Chassis Size: Approx. 125mm / 5in_x000D_Yaw Diameter: Approx. 5mm / 0.2in_x000D_Working Pressure: 0.6-0.8MPA_x000D_Air Inlet Size: 1/4in 110000RPM FOR FINE POLISHING: 10000RPM ultra high speed, bring high working efficiency, saving both labor and time, suitable for all kinds of fine mirror polishing 2POWER SAVING: Air random orbital sander using compressed air as power, energy saving and environmental protection 3NON FALL OFF: 5in hook and loop fastener type grinding disc, which can be used with suede sandpaper for smoother grinding and not easy to fall off 4FOR INDUSTRIAL USE: Chassis size for 5in(125mm), yaw diameter is 5mm, designed for high strength industrial grade use, can easily replace sanding pad and sandpapers 5WIDE APPLICABLE: Working pressure from 0.6-0.8MPA, air inlet size is 1/4in, versatile and applicable to various models 1 x Grinder 1 x Wrench 5 x Sandpaper 1 x US Style Joint 1 x User Manual