Used to clean up dirty or damaged spark plug threads on Twin Cam, V-Rod and some Sportster modelsSpark plug thread with a lead in (for proper alignment) and flutes (for dirt and chip relief)Also...
Full-range coverage for all spark plug gapping requirements from .020" to .080" (.060 mm to 2.00 mm)Includes a recess specifically designed to adjust electrodesPrecise and easy to useApplications...