POWERTEC presents the Premium Grade, 6 in. 49 Holes, Ceramic Hook and Loop Sanding Disc Set - 150 Pack (50 each of 80/120/220 Grits) These Ceramic sanding discs are perfect for smoothing rough surfaces, including paint, wood, metal, plastic, and difficult-to-sand materials such as superalloys and stainless steel. It features a universal multi-hole pattern that fits 6-inch 49 Holes sander, and its anti-clog construction ensures long-lasting performance. If you're a professional woodworker, metalworker, painter and craftsman, these hook and loop 6 inch sanding discs are ideal for: Shaping wood projects, Smoothing rough surfaces, Removing old paint or varnish, Removing rust and corrosion. Features: Anti-clog construction for durability and performance, Maximizes dust collection for a cleaner work environment, Removes large amounts of material quickly. Sanding Grit Type: Medium to Fine Abrasive - Good choice for applications that require sanding marks removal from a painted surface, or preparing a wood surface for a clear finish.