The MILWAUKEE® M18™ FUEL™ 21mm Random Orbital Polisher Kit is the industry's first cordless 21mm RO polisher. By harnessing the power, performance, and run-time of M18™ FUEL™ technology, this polishing tool delivers corded performance while providing the freedom to work anywhere. This battery-powered polisher gives total control with its variable speed trigger, 8-position speed dial with RPM settings ranging from 2,400-4,500 RPM, trigger lock-on button, and maintains speed under load.The M18™ FUEL™ 21mm Random Orbital Polisher frees users from cord management and the fear of surface damage with best-in-class clearance of more than 2 from the battery to the work surface. The Milwaukee M18™ FUEL™ 21mm Random Orbital Polisher provides the run-time necessary to keep professionals productive during polishing and heavy correction applications when paired with M18™ REDLITHIUM™ HIGH OUTPUT™ XC 6.0Ah batteries. This cordless polishing tool is easy to use and comfortable for extended periods with an optimized center of balance and ergonomic design.