• Starcke #: R BP-4.5-BLK-S • 4.5" x 5/8-11 black bolt on firm low profile smooth face backup pad. • Air cooled resin fiber disc pad. • Great for the majority of aggressive grinding applications, especially for coarse grit sanding and grinding. • Made with firm thermo-plastic compound and are rigid making them perfect for stock removal. • Features airflow holes that are part of a revised and improved design to promote more flow underneath the abrasive disc in use. • Cooling action extends the life of the disc and the backing pad itself.
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