The faithful professional security screwdriver bit setincludes most populay screwdriver types and specially shaped security fixings used in industry on appliances and toys the set contains 58 chrome vanadium steel 14in hex drive bits a standard magnetic bit holder and a quick release ejector bit holder the set is supplied in a sturdy plastic storage case contains the following5 x slotted bits 3 4 5 6 7mm7 x pozidriv bits pz0 pz1 pz2 x4 pz36 x phillips bits ph0 ph1 ph2 x3 ph311 x hex bits 1