The bahco s103 103 piece socket spanner set contains a variety of popular sizes in a handy carry case with easy identification sizes printed on the tray contents 17 x 12in square drive sockets 10 11 12 13 14 15 16 17 18 19 20 21 24 27 30 32 and 34mm 6 x 12in square drive deep sockets 10 13 16 17 18 and 19mm 12 x 14in square drive sockets 4 45 5 55 6 7 8 9 10 11 12 and 13mm 6 x 14in square drive deep sockets 7 8 9 10 11 12 and 13mm 2 x 12in spark plug sockets 16 and 21mm 3 x 14in phillips bits