POWERTEC presents the Premium Grade, 6 in. 49 Holes, Zirconia Hook and Loop Sanding Disc Set 150-Pack (50 each of 80/120/220 Grits). These Zirconia 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 in. 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. Sanding Grit Type: Medium to Fine Abrasive - Good choice for surface finishing and smoothing.