Universal glow plug removal kit M12x1.25 without accessories and brushes
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More than once does the drive hexagon break off during removing extremely seized glow plugs. While still attached to the glow plug body, the central contact of the glow plug prevents the drive hexagon from being removed. With these tool sets, in a few steps, the central contact is removed, a screw-on or hammer-in drill sleeve installed and the glow plug is guided or freehand drilled out.
Removing the central electrode
Drilling out the glow plug thread
Extracting the glow plug
Recutting the fastening thread in the cylinder head