Big Horn 19523 16-Piece EVA Material Sanding Drum Kit. Sanding drum set lets you use your drill press as a spindle sander. You will be ready for virtually every job with this quality set of drum and sleeves .Self expanding rubber cushioned drums have 1/4" shank. Excellent for sanding holes, edges, contours, irregular shapes and wider surfaces. These drums will also work in hand drills for freehand sanding use. Ideal for straight and contoured sanding jobs for hard to reach areas.