Open and bi-hexagonal ends with 15° offset and short body, for greater access. Hardened and tempered, drop-forged chrome vanadium. High quality fully polished finish. Ultra-strong ballistic nylon storage roll. Includes metric sizes: 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19mm. Open and bi-hexagonal ends with 15° offset and short body, for greater access. Hardened and tempered, drop-forged chrome vanadium. High quality fully polished finish. Ultra-strong ballistic nylon storage roll. Includes metric sizes: 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19mm.