DeWALT DW8311 Flap Disc, 4-1/2 in Dia, 5/8-11 Arbor, Coated, 40 Grit, Coarse, Zirconium Oxide Abrasive

Designed for grinding angles of 20 to 25 deg, DeWALT-type 29 HP flap discs quickly remove material with aggressive grinding action. Featuring zirconia grit, which removes material 3X fast than fiber resin metal sanding discs, each disc is packed with a premium abrasive cloth that lasts 15X long than fiber resin metal sanding discs.