The Lisle Hole Thread Chaser Spark Plug Pack of 6 LS/20200 is a set of 6 tools that are used to clean and repair spark plug threads. The tools are made of hardened steel and have a spiral fluted design that helps to remove dirt, carbon, and other debris from the threads. The tools are also tapered, which helps to re-size the threads and make them ready for a new spark plug.
Chaser cleans threads in spark plug hole of dirt, carbon build-up, and metal particles. Double ended for both 14mm and 18mm threads. Neoprene band on hex drive holds tool securely in any 13/16" deep-well spark plug socket. 1 lbs (0.5Kg) shipping weight.