Lisle 61980 10-Piece Stripped Screw Extractor Set

Six lobed spiral bits are designed to remove rounded or stripped fasteners with internal drive heads Ten sizes of extractors fit Torxr and Torx Plusr sizes T-10 to T-55; internal hex sizes 7/64" to 3/8" and 3mm to 10mm Will also work on other internal drive screw heads To remove broken bolts, drill a pilot hole for the appropriate size extractor Choose the extractor that fits snugly in the fastener. Turn counter-clockwise to remove fastener. It may be necessary in some applications to drive the extractor into the fastener with a hammer for maximum torque