【Applicable】Oxygen sensor thread chaser tool use for cleaning and re-threading damaged spark plug hole. Cleans damaged spark plug ports and threads. Rethreads damaged spark plugs, eliminates corrosion and straightens damaged threads. Reduces the chance of cross threading.
【Feature】A Double-ended for both 10mm and 12mm threads.
B Double-ended for both 14mm and 18mm threads.
【Size】 M10 x 1.0, M12 x 1.25, M14 x 1.25, M18 x 1.5.