General description The sanding disc set includes 100 sheets of 25mm round sandpaper and a circular backing sanding pad with shank. The sandpaper is wear-resistant and durable, making it ideal for various grinding and polishing tasks. Technical specifications Disc diameter: 25mm Grit types: 100, 180, 240, 1500, 3000 Quantity: 20 pieces of each grit (total 100 sheets) Backing pad shank: 1/8 inch universal Compatibility and accessories Compatible with most rotary tools Usage Ideal for grinding and polishing small areas Suitable for narrow, small, or complicated places Can be used on wood, jade, jewelry, car headlights, etc.