Each set is furnished in a plastic case. 3 Flute style supplied for sizes 6 and smaller. All other sizes supplied in 4 Flute style. Set includes: 1/4", 5/16", 3/8", 7/16", 1/2", 5/8", 6mm, 7-8mm, 9-10mm, 11mm, 12mm, 16mm
