- Product: 320 grit, 5 inch (125 mm) hook-and-loop sanding discs with 8 pre-punched dust extraction holes. - Abrasive material: durable aluminum oxide grain for high-speed sanding and long-lasting cut. - Bonding: resin-over-resin bonded grains for aggressive, consistent removal and smooth finish. - Backing: hook-and-loop attachment for quick installation and secure hold; easy removal and replacement. - Dust management: 8-hole pre-punched pattern aligns with standard 5" dust-extraction sanders to reduce clogging and keep the work surface clean. - Performance benefits: good abrasion resistance for efficient material removal, anti-static treatment to reduce dust buildup, and anti-clogging properties to extend disc life and maintain cutting performance. - Intended uses: designed for grinding and finishing tasks on wood, metal, and paint surfaces where 320 grit smoothing is required. - Typical applications: 1) Woodworking: sanding between coats, smoothing veneers, and preparing surfaces for staining or finishing. 2) Auto and bodywork: light paint prep, feathering edges, and smoothing primer before final finish. 3) Metalwork: deburring, blending welds, and refining surface texture prior to painting or polishing. - Compatibility: fits 5" (125 mm) hook-and-loop sanding pads and sanders with an 8-hole dust pattern. - Why choose this disc: reliable aluminum oxide cutting power, resin-over-resin durability, and practical features (hook-and-loop backing, 8-hole dust extraction, anti-static/anti-clogging) that make finishing and prep work faster and cleaner.