Spark Plug Kits
All spark plug kits contain a Tandem tap instead of a clearance drill and tap. The first lead of the Tandem tap locates on the existing thread of the hole in the cylinder head. By following the existing thread, the thread form for the wire insert will be re-cut at exactly the correct angle.
MFR Part No.
|Packs of 10 Inserts|
|M14 x 1.25|
|Metric Helicoil Inserting Tool|