General 8-1/2 in. L X 7/16 in. W High Carbon Steel Assorted Thread Repair File 1 pc

Our thread repair files help breathe life back into bolts, screws or fittings that have been damaged due to cross-threading or corrosion. Made of high carbon steel. The repair files offer eight different thread pitches. In addition, the thread repair files can also be used as a screw pitch gage.