FlexOvit® 7" X 5/8"-11" 36 Grit SANDSTORM™ Ceramic Alumina Resin Fiber Disc CG+ Top Sized features advanced ceramic grain with cooling agents to reduce heat, loading and glazing. Constant material removal rate for the life of the disc. Recommended for use in heavy duty industrial applications where premium performance is required. Quick Spin 5/8-11 adapter eliminates the need for a locking nut.