The present invention relates to an abrasive article comprising an aligned row of connected abrasive sheet members each having a main portion, an aperture formed in the main portion, and a plurality of arm portions perimetrically spaced about the main portion at a constant angle with respect to each...http://www.google.com.au/patents/US5197998?utm_source=gb-gplus-sharePatent US5197998 - Method of making a folded abrasive article
