Sandwox Red Flap Disc features high-performing ceramic mineral that stays cool and reduces discoloration on stainless and high nickel alloys, Constructed for rapid stock removal on welds and other similar ferrous based materials. The overlapping cloth flaps provide extended durability and maintain a sharp cut as the flaps wear away, leaving a smooth finish. The overlapping cloth flaps provide extended durability and maintain a sharp cut as the flaps wear away, leaving a smooth finish.