LANG TOOLS Rethreader Spark Plug 1013A - Techworks Performance Online

Requires the use of a 5/8″ spark plug socket, or the female square requires the use of a male 3/8″ square drive, Used to clean up dirty or damaged spark plug threads on Twin Cam, V-Rod and some Sportster models, Spark plug thread with a lead in (for proper alignment) and flutes (for dirt and chip relief), Also features a 5/8″ hexagon with O-ring and female 3/8″ square drive