Siegen power tool bit set colour coded s2 siegen tools s01036 this socket and bit set from siegen has been manufactured from high quality chrome vanadium steel features a popular range of sockets and bits suitable for general workshop use sockets are hardened and tempered with a fully polished finish for resistance to corrosion s2 colour coded bits for guaranteed fast identification includes 14in sq drive ratchet extension bar and bit adaptor contents bits slotted 4 5 6 phillips