a disposable finishing article for mounting on a rotatable threaded spindle of a power tool . the finishing article contains a retaining nut on one side and a backing flange on the other non - removably secured together on the finishing article without the aid of the adhesives in such a manner that the finishing article is placed in compression when it is operably secured upon the spindle of the power tool under operative loads . the nut and flange are secured together by upsetting one end of the nut causing it to protrude outwardly over the outer surface of the flange . a pressure cap member is secured by rotation to a plurality of fingers formed on the backing flange for engaging a shoulder formed on the spindle of the power tool during operation of the finishing article .