5 SANDERS IN 1: The WX820 Cordless Multi Sander does the job of an orbital sander, finishing sander, detail sander, contour and finger sander all in one compact package, all in a cordless 20V package. EASY CHANGING PLATES: Switching between sanding plates is quick and easy, thanks to the Hyperlock system with 1 ton clamping force. Simply loosen the clamp , swap over the sanding plate and then tighten the clamp back up. MODE MAX: Innovative Mode Max Technology maintains power transfer specific to each sanding task. It transfers power based on the needs of the base being used, maximizing efficiency and performance., Weight: 3.637627323 pounds, Manufacturer: WORX