The set comprises Three flat blades 4 6 8mm Three Pozidrive blades Nos. 1 2 3 Three Phillips blades Nos. 1 2 3 One 60mm long magnetised blade holder A high quality set of precision 50mm long blades for use with 6.35mm 14in. hex screwdrivers. The 9 blades & holder are manufactured from chrome vanadium steel & hardened.