Titan Tools 18193 3/8" and 1/2" 27-Piece Drive Socket Set 3/8" Drive & 1/2" drive composite dual head ratchet (18) 3/8" drive sockets including: SAE: 5/16, 15/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16; Metric: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm (6) 1/2 drive sockets including: SAE: 3/4, 13/16, 7/8"; Metric:18mm, 19mm, 21mm 3" x 3/8" Drive Extension 5" x 1/2" Drive Extension