The Dewalt DWA8280H 4-1/2" X 5/8-11 40G T29 Ceramic Flap Disc is a high-quality metalworking supply designed for sanding and grinding tasks. Made with coated ceramic abrasive material, this coarse grit flap disc is suitable for various metal and stainless steel surfaces. With a center hole size of 5/8-11 and a disc diameter of 4-1/2 inches, this product is ideal for use with Type 29 attachment systems. This lot of 10 certified Dewalt flap discs ensures smooth and efficient performance in metalworking projects, meeting the standards set by the California Prop 65 Warning.