Photo 1 of Metric Helicoil Thread Repair Kit: 131-Piece Heli Coil HSS Drills Inserts Taps & Tools M5 M6 M8 M10 M12 Automotive Engine Spark Plug Cylinder Insertion Rethreading Tools Universal Rethread Restorer

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Photo 1 of Metric Helicoil Thread Repair Kit: 131-Piece Heli Coil HSS Drills Inserts Taps & Tools M5 M6 M8 M10 M12 Automotive Engine Spark Plug Cylinder Insertion Rethreading Tools Universal Rethread RestorerPhoto 2 of Metric Helicoil Thread Repair Kit: 131-Piece Heli Coil HSS Drills Inserts Taps & Tools M5 M6 M8 M10 M12 Automotive Engine Spark Plug Cylinder Insertion Rethreading Tools Universal Rethread Restorer