The United Abrasives-SAIT Spiralcool™ 4 1/2" Medium Backing Pad with 5/8" arbor features rubber, fabric and fiber board construction that render reliability as well as extra strength. Backing pad with nut runs at a maximum speed of 11000 RPM and is ideal for resin fiber disc. It features spiral ribs that render contact points and form channels for airflow while extending disc life.
