Fein 80 Grit Perforated Sanding Sheets, 5PK are designed with aluminum oxide and a full resin bond to ensure fast material removal, reduce glazing, and extend tool life. These sanding sheets are versatile and suitable for use on nearly all materials. Their perforated design allows compatibility with perforated backing pads and dust extraction systems, enhancing efficiency and cleanliness during sanding tasks. Model Number: 63717110043