The Milwaukee 2438-20 M12 12V Variable Speed Polisher/Sander with Pads is an optimal part of the M12 lineup. Powered by a 12V lithium-ion battery (sold separately), it is optimized to provide fast, detailed work. It delivers the work of two tools by switching between polishing and sanding modes. It is compact and lightweight, weighing just 1.58 pounds. It provides the user with increased control regardless of the application. It features dual-mode control and a variable speed trigger. Complete your polishing and sanding tasks fatigue-free, thanks to this lightweight and reliable tool!