Polisher GPX 12V-77. The GPX 12V-77 random orbital polisher offers consistent performance thanks to its brushless motor. It combines comfort and precision with a throttle trigger for fine adjustments within the selected speed and a soft start feature to prevent splatter. This polisher includes HMI functions, a battery charge indicator, and a 5-speed selection that allows you to control the polishing process. The GPX 12V-77 makes polishing easier with a lock switch that keeps the trigger pressed during use. Its compact, ergonomic design ensures comfort and ease of use. The GPX 12V-77 is ideal for eliminating holograms and removing light scratches in small areas. It is compatible with all GBA 12V batteries. The GPX 12V-77 features a 77 mm polishing pad with a wrench for easy backing pad changes. It has a 12 mm orbit with eccentric motion. Box. Backing pad (77 mm). Medium polishing pad 77 mm.