The 10 PACK of 3M Flap Discs is a high-quality abrasive tool used for metalworking. With a center hole size of 7/8 inches and a purple color, this product is designed for efficient sanding and grinding tasks. Made by the trusted brand 3M™ and sourced from the US, these flap discs offer durability and reliability for various industrial applications. With 40+ grit, this product is ideal for professionals in the metalworking, and manufacturing industries looking for reliable and effective sanding discs.