[Comprehensive Collection]This set includes 70 aluminum oxide discs across six grits, 25 zirconium oxide discs in five grits, 15 non-woven discs in three textures, 2 mini flap discs, 2 black sanding discs, and 2 wool discs. Each type is packed separately with grits clearly marked for easy identification and organization. [High-Quality Construction]Crafted from premium materials such as aluminum oxide, zirconium oxide, and wool, these 2-inch sanding discs are built to last. They are designed to withstand up to 23,000 RPM, providing exceptional durability and resistance to wear during high-speed operations. [Efficient and Secure Attachment]Featuring unique safety torque screw, these quick-change discs a fast and secure attachment to the disc holder. The easy twist-off and twist-on action allows for swift disc changes without the risk of , enhancing both safety and productivity. [Versatile Tool for Multiple Uses]Ideal for a wide range of applications, these discs are perfect for removing rust and paint, as well as sanding, buffing, and polishing surfaces including wood, metal, steel, plastic, and rubber. They are extensively used in industries such as shipbuilding, automotive, aviation, and machinery. [Universal Compatibility]Equipped with a rubber backing pad featuring a 1/4-inch shank, these discs are compatible with a variety of tools including power drills, die grinders, air grinders, and any other equipment with a 1/4-inch chuck, making them a versatile addition to any tool collection. Color: as shown Material: Alumina, Zirconia Package Contents: 70 x aluminum oxide discs across six grits 25 x zirconium oxide discs in five grits 15 x non-woven discs in three textures 2 x mini flap discs 2 x black sanding discs 2 x wool discs 2 x 1/4 inch holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.