With the tap M16 x 1.25 x 70 mm length, you can enlarge the spark hole to fit the sleeve. 17-PC SPARK PLUG THREAD REPAIR TOOL KIT. highly useful and top quality plug thread repair tool kit. Suitable for repairing spark plug threads 14mm x 1.25mm.

Brand: Generic
Type: Spark Plug Thread Repair Kit
System of Measurement: Metric
Number of Pieces: 17
Set or Single Item: Set
Country/Region of Manufacture: China