• Drive size: 3/8" • Sizes(mm): 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22 • Material: Chrome Molybdenum Steel (Cr-Mo) • Finish: Black • Package type: Metal box • Product size(WxDxH mm): 344x92x50 • Product weight(g): 2150