The DeWalt DWA8201 4" x 5/8" 40 Grit Zirconia T29 Flap Discs are designed for metal blending tasks. With a 10-pack included, these flap discs are ideal for various industrial applications, such as welding, grinding, and sanding. Made by the trusted brand DeWalt, these discs offer high-quality performance and durability, making them a reliable choice for professionals in the metalworking industry.