Aluminium oxide abrasive drums for sanding, shaping and surface preparation. For use on metals, alloys, ceramics, tiles, stone, glass, plastics and fibreglass. Compatible with most rotary tools including Silverline, GMC and Dremel. Includes 10 x 80 Grit drums (5 for each size mandrel). 3.17mm drum mandrels. Max 28,000rpm. Aluminium oxide abrasive drums for sanding, shaping and surface preparation. For use on metals, alloys, ceramics, tiles, stone, glass, plastics and fibreglass. Compatible with most rotary tools including Silverline, GMC and Dremel. Includes 10 x 80 Grit drums (5 for each size mandrel). 3.17mm drum mandrels. Max 28,000rpm.