Resin Holder Plate, Material Application Concrete, Optimal Performance for Material Various Materials, Product Type Holder Disc, For Use With PG 690, PG 690 P, PG 820, PG 830, Disc Diameter 10 1/2 in, Application Surface Preparation, Compatible with Grainger Part Number 18G371, Compatible with Manufacturer Part Number PG 690, PG 690 P, PG 820, PG 830, For Tool Type Husqvarna PG Series Floor Grinder, Includes Resin holder plate, Material Resin