These 4" fine grit sanding wheels are great for mild cleaning and polishing.
Safer to Use and lasts longer than wire brushes! Abrasive grain is impregnated in the bristles. Three color coded abrasive styles: Gray is 80 grit coarse, orange is medium 120 grit, and blue is fine 240 grit. Performs consistently throughout its lifetime: the abrasive does the work!