The BlueSpot 15 PCE Air Die Grinder Set is ideal for grinding and polishing a range of materials. The set comprises: 1x mini air die grinder including 6mm (1/4") collet, 2 x hand wrenches, 1 x 3mm (1/8") collet, 5 x 1/4" (6mm) shank grinding stones, 5 x 1/8" (3mm) shank grinding stones, 1 x ¼†air line fitting. The set is supplied in a useful, blow molded, plastic carry case.