No-lap aluminum oxide resin bond sleeves. Excellent for sanding holes, edges, contours, and irregular shapes. Includes 5 general purpose drums in widths of 1/2-inch to 1-1/2-inch, and diameters of 1/2-inch-to-2-inch. 1/8-inch-to-1/4-inch diameter shanks. Also Includes one fine grit and one coarse grit sleeve for each drum size in kit. 15-piece set. Manufactured in USA.