Kennedy Spark Plug Hole Thread Chaser Copper Spark Plugs  (Pack of 1)

This double-ended spark plug thread chaser is designed to clean and restore both 14mm and 18mm plug hole threads. It effectively removes corrosion, dirt, and carbon build-up from female spark plug threads and sensor sockets, helping ensure proper plug seating and reliable ignition. Ideal for repairing minor cross-threading damage, it can help prolong the life of your cylinder head threads. For best results and easy operation, use with a 21mm deep socket. Built for durability and workshop use, this tool is suitable for professional mechanics and DIY enthusiasts working on cars, motorcycles, lawn equipment, and other small engines.