Weiler Tiger aluminum 4-1/2 inch resin fiber discs are specifically designed for high performance on aluminum and other non-ferrous metals. Top coat grinds cool and eliminates loading, which results in higher cut rates, long life and superior finish. Ideal for industries such as ship building, tank & pressure vessel, ornamental fabrication and right angle grinder applications such as edge chamfering, weld blending, surface preparation and finishing. Specially Formulated for Superior Grinding Performance on Aluminum. Resist Loading, Ensure Higher Cut Rates, Prolong Disc Life and Achieve Superior Finish. . . .