Thread repair kit for glow plug M12 x 1.25. - Tap and coil insert for repairing M12 x 1.25 Glow plug threads. - 5 x 12mm M12 inserts. - 5 x 19mm M12 inserts. - 5 x 26mm M12 inserts. -This kit ensures a straight thread and the new insert provides an efficient fit.
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