Forney 71991 Flap Disc, Type 29, 4 in x 5/8 in, ZA36

Blue zirconia flap discs cut fast and outlast sanding discs 10-to-1. Great flexibility. Ideal for rough or fine finishing. Multiple layers of zirconia cloth flaps constantly exposing new extra sharp grinding points. Laminated by state-of-the-art automated equipment. Reinforced fiberglass backing plate. Each disc is balance tested for vibration-free grinding/finishing. Product Specifications: Wheel Size: 4". Arbor: 5/8". Grit: 36. Spec: ZA36. Max RPM: 15,200. Tool Type: Right Angle Grinder.