Bosch 5" 12V Cordless Random Orbital Polisher KitBosch GPX 12V 125 5" Cordless Polisher This is the bigger, more usable version of the Bosch cordless polishing platform. The 3 inch Bosch makes sense for pillars, bumpers, edges, and tight spots. The 5" GPX 12V 125 takes that same cordless idea and scales it up into something you can actually use on larger panels. It gives you the convenience of a cordless machine without stepping all the way into a full size polishing setup. Bosch brings some real