region 14 includes abrasive material in the form of abrasive grains 18 adhered to the working surface 12 of the backing of the circular disc 10 region 16 is a center aperture in the circular disc 10 for use in mounting the disc 10 on a rotatable shaft of a power driven grinding tool for rapidly rotating the disc 10 as the working surface 12 is applied to the surface which is to be abrasively finished it will be understood by those skilled in the art that various attachments may be used which may or may not require a center aperture generally the diameter of the disc will be within the size range of about two to six inches but can vary therefrom the disc may typically have a center aperture as illustrated that is the region 16 which is usually about u00bc to u215e inches in diameter alternatively however instead of having a center aperture as illustrated at 16 there may be affixed to the reverse or backside of the disc 10 an attachment system which is utilized for attaching the disc 10 to an appropriate power drive tool such as a random orbit dual action sander referring now more particularly to fig2 a coated abrasive article 10 according to the present invention includes a backing 20 and a layer 22 of adhesive material this adhesive material 22 is used to secure an abrasive material such as a plurality of abrasive grains 24 to the working or first major surface 26 of the backing 20 the layer of adhesive 22 is commonly referred to as a make coat a second adhesive layer 28 which is commonly referred to as a size.