Diablo Hook & Lock 6-In. 220-Grit ROS Sanding Discs, 10-Pack are for final sanding and surface preparation before applying stain or varnish. These sanding discs feature a premium ceramic grain blend that ensures fast material removal and a long sanding life. Designed with a 6-hole pattern, they provide quick and easy alignment on 6-hole sanders. The hook and lock backing allows for secure attachment and effortless removal, ensuring a consistent connection every time. These discs are suitable for use with orbital and dual action sanders on wood, metal, and plastics, making them a versatile choice for various sanding projects. Model Number: DCD060220H10G