3M Flap Disc 566A provides a versatile one-disc system for metal fabrication applications where more durability is needed for medium-weight grinding, small weld removal, finishing, and surface preparation. Run on a right angle grinder, this disc is a one-step alternative to bonded wheels and fiber discs. Flap discs allow one-step grinding and blending, saving time and cost. Alumina zirconia self-sharpens and provides extended life and more cutting power than aluminum oxide, reducing replacement costs. Strong, Y-weight polyester-cotton backing offers flexibility and supports fast cut on medium to high pressure grinding and finishing applications. Quick change disc simplifies disc changes and does not require hand tools.