This teng tools set is an ideal solution for removing broken screws pipes bolts and studs the 11 piece set contains 5 screw extractors 4 bolt extractors and 2 nut splitters which are supplied in a handy storage tray the ttsn11 stud and nut remover set contains the following 5 x screw extractors 764 964 532 14 and 1964 inch 4 x stud 12inch drive extractors 6 8 10 and 12mm 2 x nut splitters 5 20mm capacity and 14 27mm capacity