Festool 575188 150mm Rubin 2 P80 MJ2 Disc Abrasives, 50-Pack builds on the industry-leading performance of the Rubin abrasive to set a new standard for efficiency in wood-finishing applications. Designed to minimize the time spent on each level, Rubin 2 a 30% faster removal rate and a 30% longer sheet life. This abrasive quickly sheds wood fibers to prevent clogging, keeping the surface sharp for faster and more effective sanding. With its ability to prevent pitch and wood fiber buildup, you by getting up to 30% longer use from each sheet. Rubin 2 is also designed for rapid grit progression, allowing you to move quickly from 80 to 220 grit and achieve possible finish in less time. Model Number: 575188