The Milwaukee 2684-20 is a cordless 15mm random orbital polisher built on the M18 FUEL brushless platform. It runs from 2,650 to 5,100 RPM through an 8-position dial and a variable-speed trigger with lock-on, and it holds speed under load better than most cordless rivals. Its 15mm orbit suits paint correction and finishing on cars, boats and gelcoat. Against corded polishers it trades unlimited run time for freedom from cords; against smaller-orbit cordless tools it covers more area per pass but is less aggressive for heavy defect removal. Owners rate it highly for power and balance, and most criticism centers on battery drain and the need for high-output packs.
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Owners rate the 2684-20 at 4.7 out of 5 and praise its power, speed control and balance. Most complaints are about battery consumption and the cost of the high-output packs needed for long sessions.
The Milwaukee M18 FUEL 15mm Random Orbital Polisher is a cordless dual action polisher that runs on M18 batteries. It has a variable speed trigger and an 8-position speed dial with settings from 2,650 to 5,100 RPM. A lock-on switch reduces fatigue during extended use.
An electronic motor feedback system maintains speed and power under load. The tool has 2.21 in. of battery clearance, which helps protect work surfaces from dents and scratches with proper use. For polishing and heavy correction work, it is paired with M18 REDLITHIUM HIGH OUTPUT XC 6.0Ah batteries for run-time.
The polisher has an optimized center of balance and an ergonomic design for comfort and portability.
