6" Cup Brush, Nylon Filament, 5/8"-11 Thread, 2500 max.RPM Go to amazon.com Related posts Best osborn brush FeatureCan be used on metal, wood, aluminum, and plastic surfacesLasts up to 6 times longer than wire brushesNon-oxidizing, will not react with metalWill not load or clogIdeal for spray-on truck bedliner preparation