Siegen power tool bit set colour coded s2 siegen tools s01037 this power tool bit set from siegen has been manufactured from high quality chrome vanadium s2 steel popular range of bits suitable for general workshop use colour coded for guaranteed fast identification includes automatic quick release chuck and 60mm magnetic bit holdercontents 25mm bits slotted 4mm x2 5mm x2 6mm x2 phillips 1 x3 2 x6 3 x3 pozi 1 x3 2 x6 3 x3 trx star t10 x2 t15