Professional bits, premium Tecos. Developed for optimal fit in all types of screws. Perfect to hang in for example in the belt. Tecos has developed professional bits in S2 quality, which means an extremely long life while the force is transferred perfectly in the screw so that the screw head is not torn. Contains : PH1,PH2,PH3, 2 pieces PZ2 , Torx 10, Torx 15 , 3 pieces torx 20, 3 pieces torx 25, Torx 30 , Torx 40 , H3, 2 pieces H4, 2 pieces H5, 2 pieces H6 , Bit holder and socket adapter