Weiler 60508 2" TYPE S HUB PAD + MANDREL FOR BLENDING DISCS & BOBCAT FLAP DISCS. Specifically formulated for superior grinding performance on aluminum. These revolutionary discs resist loading, ensure higher cut rates, prolong disc life and achieve a superior finish. Weiler's cloth backed coated abrasive discs are for use on right angle air tools. Available with either a metal hub or a plastic button fastening system, the flexible back-up pads give the discs a great deal of conformability. Weiler's blending discs are suitable for a wide range of light fabrication, repair and maintenance applications. Zirconia Alumina is for high performance grinding of stainless steel, tool steel, and other hard to gring materials. Weiler's products are made to the strictest quality standards and specifications and are designed to provide superior work performance and safe operation when used properly.