Weiler Wolverine zirconia alumina 4-1/2 inch resin fiber discs provide a sustained high cut-rate at exceptional value for everyday, general purpose use on steel. 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. Ideal for Blending, Finishing and Surface Preperation. Sustained high cut-rate at exceptional value. . . .