Description: Ideal for work on irregular or contoured surfaces, widely used for polishing up stainless steel, aluminum, non-ferrous metals automotive and stone in combination with polishing paste. 100% wool felt affixed to a fiberglass backing plate to create a thick polishing pad. The individual flaps are flexible, allow a cool air flow. Felt discs are used with polishing pastes to provide up to a mirror finish. Less noise, Long service life, Fast stock removal. Prevent overheating, Softer, more flexible performance. Dia.: 4-1/2"; Arbor: 7/8"; Max. Speed: 10,000 R.P.M.; Thickness: 13mm; Include: 10pcs. Warning: always take care and keep away from children. always wear eye protection in work area.