Designed for angle grinders, this 4-1/2-inch Type 27 flap disc features 50-grit ceramic abrasive and a 7/8-inch arbor. FREEZE topsizing reduces heat buildup in the workpiece compared with standard flap discs, while minimizing sparks to help protect stainless steel from spark damage. Its aggressive stock removal supports fast, efficient work, with consistent aggressiveness and excellent durability throughout the disc's service life. It is suited for stainless steel, cobalt- and nickel-based alloys, and nickel- or titanium-based superalloys.