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 1/2in Square Drive Sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 24, 27, 30, 32 and 34mm. 6 x 1/2in Square Drive Deep Sockets: 10, 13, 16, 17, 18 and 19mm. 12 x 1/4in Square Drive Sockets: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11 and 13mm. 6 x 1/4in Square Drive Deep Sockets: 7, 8, 9, 10, 11, 12, and 13mm. 2 x 1/2in Spark Plug Sockets: 16 and 21mm. 3 x 1/4in Phillips Bits: PH1, PH2 and PH3. 3 x 1/4in Pozidriv Bits: PZ1, PZ2, and PZ3. 9 x 1/4in TORX Bits: 6, 8, 9, 10, 15, 20, 25, 30 and 40. 6 x 1/4in Hex Bits: 3, 4, 5, 6, 7 and 8. 3 x 5/16in TORX Bits: 45, 50 and 55. 2 x Bit Holder: 1/4 and 1/2in. 2 x Universal Joint: 1/4 and 1/2in. 3 x Extension Bar: 1/4in: 100mm, 1/2in: 125 and 250mm. 2 x Ratchet: 1/4in 150mm, 1/2in: 250mm. 2 x Screwdriver Reversible Ratchet: 1/4in: 150mm, 1/2in: 250mm. 1 x 1/4