Williams EXS-30 6-Piece Screw Extractor Set,Snap-on Industrial Brand JH Williams,EXS-30" /> Designed for quick, easy removal of left or right handed broken screws, bolts, studs, or other threaded forms Drill bit sizes to be used are stamped on each extractor A hole is first drilled in the broken stem and the right size Williams extractor is then inserted Size range 1/8 to 15/32-Inch Fluted screw extractor