Experience premium finishing performance with RADNOR Ceramic Type 29 Flap Discs. Engineered specifically for demanding medium stock removal and fast blending, these conical discs provide maximum surface contact for optimal finishing in one pass. Supported by a strong fiberglass backing, they are available in 4 1/2" and 7" sizes, feature 40, 60, and 80 grit options, and fit easily onto standard 7/8" and 5/8" - 11" arbors.