General description Flap Discs are designed for grinding, surface, and edge grinding applications. They are ideal for coarse de-rusting of metal, removal of old paint layers, and smoothing of coarse wood. Suitable for both professionals and DIY enthusiasts, these discs are perfect for use in homes, workshops, and construction sites. Technical specifications Disc Diameter: 115 mm (4.5 inches) Bore Diameter: 22.2 mm Material: Zirconium Oxide abrasive cloth with mesh cover Grit: 40, 60, 80, 120 (mixed) Suitable for: Aluminum, Brass, Copper, Metal, Nickel, Steel Grinder Type: Angle Grinder Disc Type: Flap Disc Compatibility and accessories Compatible with 4.5 inch angle grinders and sanders Package includes: 5 discs of 40 grit, 5 discs of 60 grit, 5 discs of 80 grit, and 5 discs of 120 grit