Craftsman 27 Pc. 6 Pt. Metric Easy Read 3/8 In. Dr. Socket Wrench Set Includes: 16 standard sockets (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, and 21mm) 8 deep sockets (9, 10, 12, 13, 14, 15, 17, 19 mm.) 3/8 in. drive ratchet 2 extension bars (3, 6 in.)