This professional extra long bit set consists of 15 chromium vanadium bitsand a strong plastic storage case the extra long bits are each 150mm longthe set contains 4 flat headed bits 4 5 6 7mm 3 cross headed bitsphillips ph 1 2 3 3 pozidrive bits pz 1 2 3 and 5 t section bits t 15 20 25 30 40