Diablo 5-In. 40 Grit ROS Hook & Lock Sanding Discs, 4-Pack are designed for fast leveling, shaping, and heavy removal and stripping tasks. Crafted from a premium ceramic grain blend, these discs deliver rapid material removal while ensuring a long sanding life. They feature a 12-hole universal hole pattern for quick and easy alignment, making them compatible with all 5 and 8 hole sanders. The hook and lock backing allows for secure attachment and effortless removal, providing a consistent and reliable connection. With Clog-SHIELD technology, these discs resist pitch build-up and clogging, extending their usability. Additionally, the ENDURA-BOND grit-to-backing bond enhances durability. Suitable for use with orbital and DA sanders, these discs work effectively on wood, metal, and plastics. Model Number: DCD050040H04G