Chrislynn Spark Plug Insert Kit M12x1.25x1/2", Chrislynn Corp, Mfr#: 88003

Chrislynn spark plug insert kit m12x1.25×1/2" the precision insert system was devised as a simple method of repairing stripped or damaged threats in any metal or valuable part. Inserts are also used in new products, such as die castings or plastics, where excessive stress on threads could cause damage or failure.