Features 1、High Efficiency: The no load speed can get to 12000rpm, which will work together with the 12mm chassis for high efficiency. 2、Adjustable Speed: Flexible stepless speed regulation adds more convenience to your grinding, sanding polishing and so on. 3、Reliable Working: Exhaust vent enables continuous heat dissipation and reduces the working noise as well, very reliable. 4、Wide Application: Allows for extensive application in car beauty, wood polishing, rust removal, sheet metal polishing, etc. 5、Easy Replacement: Comes with hook and loop fastener, it's much easier to change the sandpaper on chassis. Specification Item Type: Orbital Sander Product Material: ABS No Load Speed: 12000rpm Air Consumption: 0.34m³/min Chassis Thread Interface: M8 Chassis Diameter: Approx. 125mm / 4.92in (there is a ±2mm error in manual measurement) Use Scenarios: For car beauty, wood polishing, rust removal, sheet metal polishing. Package List 1 x Orbital Sander 1 x Base Chassis (Random Color) 1 x Special Wrench