bristle brush polishing brush,polishing tool dental tool,dental lab brush polishing brush,polirapid,utg brush Pure bristle brushBristle, horse hair, wool are available. Jewelry polishing tool, dental laboratory brushPure bristle brush Supply OEM service Row Total Dia(mm) Wood Hub Dia(mm) Bristle Length(mm) Thickness(mm) Material 1C 68 48 10 19 Bristle 2C 68 48 10 14 Bristle