Socket set 1/4in and 1/2in square drive and combination spanners with dynamic drive profile. Consisting of: 12 x 1/4in Hex Sockets: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12 & 13mm.10 x 1/4in Hex Deep Sockets: 4, 5, 6, 7, 8, 9, 10, 11, 12 & 13mm.13 x 1/2in Hex Sockets: 10, 11, 12, 13, 14, 15, 17, 19, 22, 24, 27, 30 & 32mm. 5 x 1/4in Phillips Bits: PH0, PH1, PH2, PH3 & PH4.3 x 1/4in Slotted Bits: 4, 5.5 & 7mm.3 x 1/4in Pozidriv Bits: PZ1, PZ2 & PZ3.6 x 1/4in Hex Bits: 3, 4, 5, 6, 8 & 10mm.8 x 1/4in TORX Bits: T8, T10, T15, T20, T25, T27, T30 & T40.3 x 5/16in TORX Bits: T45, T50 & T55.1 x 1/2in Spark Plug Socket: 21mm (13/16in). 2 x 1/4in Extension Bars: 50 & 100mm.2 x 1/2in Extension Bars: 125 & 250mm.1 x 1/4in Universal Joint, 1 x 1/2in Universal Joint.1 x 1/4in Bit Holder, 1 x 1/2in Bit Holder.1 x 1/4in Bit Adaptor, 1 x 1/4in Magnetic Bit Adaptor. 1 x 1/4in Sliding T-Bar, 1 x 1/4in Spinner Handle.1 x 1/2in T Adaptor. 1 x 1/4in Reversible Ratchet.1 x 1/2in Reversible Ratchet. 3 x Hex Keys