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Norton Bear-Tex Rapid Finish Depressed Center Abrasive Polishing Wheel, Type 27, Fiber Backing, 5/8'-11 Arbor, Silicon Carbide, 4-1/2' Diameter (Pack of 1): Buffing Wheels: Industrial & Scientific. Norton Bear-Tex Rapid Finish Depressed Center Abrasive Polishing Wheel, Type 27, Fiber Backing, 5/8"-11 Arbor, Silicon Carbide, 4-1/2" Diameter (Pack of 1): Buffing Wheels: Industrial & Scientific. Fast cutting action with very little loading. Follow difficult part profiles. Easy cleaning of uneven surfaces. Quick cleaning and conditioning of surfaces. Easy and safe to use especially in difficult to reach areas. Quick, tool-free disc changes allow for more grinding time. Quick-change replacement; can be used on face and edge. Best performance level. 30 degree angle with most; /8" and all /" thick. Removal of paint and epoxy coating, surface rust and residue, corrosion, light weld splatter, dirt, mill scale and other similar surface contaminants. Surface prep before coatings are applied. Surface prep before welding; cleaning and conditioning afterwards. Applying fine finishes. 。 。 。