Professional 20pc sanding drum set for commercial or occasional use Aluminium oxide abrasive drums for sanding, shaping and surface preparation Suitable for use on metals, alloys, ceramics, tiles, stone, glass, plastics and fibreglass Suitable for sanding all materials including wood, metal etc... Suitable for use with most drill chucks so power drills (electric, air or battery) Ideal for sanding curves and bends Sanding belts are made from aluminium oxide for strength and durability These sanding sleeves are friction fit and eliminate the need for adhesives or fiddly clamps, simply push on, tighten the bolt underneath to expand the roller and use, then to undo simply reverse the process Small and large drums so suitable for smaller or larger surface areas SET INCLUDES THE FOLLOWING • 1 x 13mm Drum - With 4 abrasive sleeves 2 x coarse 80 grit and 2 x 120 fine grit • 1 x 19mm Drum - With 4 abrasive sleeves 2 x coarse 80 grit and 2 x 120 fine grit • 1 x 25mm Drum - With 4 abrasive sleeves 2 x coarse 80 grit and 2 x 120 fine grit • 1 x 32mm Drum - With 4 abrasive sleeves 2 x coarse 80 grit and 2 x 120 fine grit