This socket set has a wide range of both SAE and metric sockets in three different drive sizes. Made of drop forged chrome plated carbon steelBlow molded storage case keeps contents organized Includes:1/2" drive 6 pt. sockets: 11/16", ¾", 13/16", 7/8"3/8" drive 6 pt. sockets: 11, 12, 13, 14, 15, 17mm, 7/16", 15/32", ½", 9/16", 5/8", 11/16"1/4" drive 6 pt. sockets: 5/32", 3/16", 7/32", ¼", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", ½", 17/32", 9/16", 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 9, 10, 11, 12, 13, 14mm1/4" drive 8 pt. sockets: ¼", 5/16", 3/8"1" driver bits with holder: Phillips: #0, #1, #2, Slotted: 5/32", 3/16", ¼", Star: T15, T20, 30, ¼" Drive adaptorHex keys 1/16", 5/64", 3/32", 1/8", 5/32", 3/16", ¼", 5/16" and 3/8", 1.5, 2, 2.5, 3, 4, 5, 6, 8 and 10mm