3/8" Dr. Socket Set - 9 Pc. Item No. Pack KGS 299-094 Metric, 6 Point 1 1.1 5 Sockets : 10, 12, 14, 17, 19 mm 2 Spark Plug Sockets : 16mm (5/8") & 21mm (13/16") Ratchet : Round Head 8" Extension : 6"