Diablo StickFast 6-In. 40-Grit ROS Sanding Discs, 5-Pack are designed for extra heavy stock or paint removal and leveling tasks. These sanding discs feature a premium ceramic grain blend that ensures fast material removal and a long sanding life. They incorporate Clog-SHIELD technology, which helps reduce pitch build-up and clogging by using a unique blend of grinding agents. The StickFast backing utilizes an industrial-grade Pressure Sensitive Adhesive (PSA) to provide a strong and secure bond during use, making these discs reliable and efficient for demanding sanding jobs. Model Number: DCD060040P05G