DEWALT 4-1/2 x 7/8" 60-Grit Zirconia T29 Flap Disc delivers exceptional grinding performance with its zirconia grit that removes material three times faster than traditional fiber resin metal sanding discs. This flap disc is designed with premium abrasive cloth, ing up to 15 times longer life, ensuring durability and cost-effectiveness. Its Type 29 fiberglass backing allows for a grinding angle between 20 to 25 degrees, making it for efficient and precise grinding tasks. Whether you are working on metal or other tough surfaces, this flap disc provides reliable and consistent results. Model Number: DWA8207