Features Air power tool: the hand sander is powered by compressed air, which is energy-saving and environmentally friendly and labour-saving in operation. HIGH EFFICIENCY Pneumatic air grinder with 10000 rpm super high speed, suitable for all kinds of fine mirror polishing, which is efficient and durable. Wide application: the working pressure is 0.6 to 0.8 MPA and is widely used for removing rust and grinding car bodies, furniture, hardware and electronic products, etc. STANDARD SIZES This pneumatic grinder has a standard connector with a 1/4 inch air inlet size and a 5 inch grinding wheel size for easy installation and use. WITH 5 IN DISC - With Velcro sanding disc, can be used with suede sandpaper and is equipped with 5 sandpapers for easy replacement. Specification: Item Type:Pneumatic Grinder Free speed: 10000 rpm. Disc size: approx. 125 mm Orbital diameter: approx. 5 mm. Working Pressure: 0.6-0.8Mpa Air Intake Size: 1/4" Package list: 1 x grinder. 1 x wrench. 5 x sandpaper. 1 x European connector. 1 x user manual (English language not guaranteed). Small note: Pay attention to safety protection when using. Package List 1 x Grinder 1 x Wrench 5 x Sandpapers 1 x European Connector 1 x User Manual