Combination set of Open and bi-hexagonal ends with 15° offset for greater access. Hardened and tempered, drop-forged chrome vanadium. High-quality fully polished finish. Ultra-strong ballistic nylon storage roll. Includes metric sizes: 6, 8, 9, 10, 11, 12, 13, 14, 17, 19 and 22mm; AF sizes: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16" and 7/8".