4-1/2" Blue-Kote Aluminum Backing Plate Flap Disc, Type 29, 7/8" Arbor, 40 Grit, 1 Each

combines grinding and finishing in one tool, eliminating the need to switch between a grinding wheel and sanding disc. Engineered with high-performance zirconium grain, it cuts faster, cooler, and lasts longer than traditional fiber-backed abrasives, while reducing clogging, loading, and glazing. The individual flaps are designed to maintain a consistent finish throughout the disc's life, offering superior material removal with less noise. With no backing pad required and an aluminum backing for extra strength, this disc is ideal for grinding at a 15° – 25° working angle. For use on a wide range of materials including stainless steel, and is ideal for stock and weld removal, blending, and dressing.