Brushless motor of the car polisher is made for efficient performance and runtime7-inch backing plate of the variable speed polisher is recommended for most applicationsDEWALT polisher features no-load speed of 800-2200 RPM for all types of applicationsVariable speed on the trigger and dial helps to better control the tool during every step of the applicationRubber gear case overmold reduces surface imerfections and improves gripping surfaceCan be held via the front grip or side handle