Dremel 520 13 2mm impregnated polishing wheel dremel 2615052065 this impregnated polishing wheel from dremel can be used to polish various surfaces including steel aluminium brass silver gold and hard plastic without the need for a polishing compound the wheel is impregnated with a silicon carbide abrasive and cooling lubricant so additional compound is not required dremel 2615052065 520 13 2mm impregnated polishing wheel