This set contains a range of popular sockets and bits along with a ratchet wrench and extension bar Features: Manufactured from Chrome Vanadium Steel for strength and durability The bits are colour-coded for quick identification Bits are S2 nickel plated Supplied in a plastic case for easy storage Specification:  Philips Bits: PH1, PH2, PH3 Pozi Bits: PZ1, PZ2, PZ3 Slotted Bits: SL4, SL5, SL6 Hex Bits: 4 5 and 6mm Torx Bits: T10, T15, T20, T25, T27, T30 1/4" Drive Metric sockets: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13mm 1/4" Drive Hand Ratchet 50mm long Extension Bar Bit length: 25mm