General description The 70 8-hole gold sand discs are 5-inch dust-free hook and loop sandpapers, designed for efficient sanding and polishing. This versatile set includes 10 discs for each grit size: 40, 60, 80, 120, 180, 240, and 400, making it suitable for a variety of materials including wood, glass, stone, metal, rubber, leather, and plastic. The premium aluminum oxide grit and resin bond system ensure high-speed sanding and long-lasting performance. Technical specifications Diameter: 5 inches (125 mm) Grit sizes: 40, 60, 80, 120, 180, 240, 400 Backing: Hook and loop Material: Aluminum oxide Quantity: 70 discs (10 per grit) Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with random orbit sanders such as DW421, DW423, DWE6421K, DWE6423K, RS290G, 3107, 3725, ROS20VSC, 3725DEVS, ROS10, B05010, BO5041K, R26011, Black & Decker DERO100, 382, SKIL 7492-02. Usage Grit 40: Wood grinding Grit 60: Normal sanding Grit 80: Sanding plaster, removing old paint