BikeMaster Spark Plug Hole Rethreader

• True/repair the most cross-threaded plugs or ruined lead threads
• Insert into deep well socket, guide into the hole and slowly twist
• Thread cutter will pick up on old threads and chase through

Available in two versions:
• M10 x 1.0mm / M12 x 1.25mm
• M12 x 1.25mm / M14 x 1.25mm