• This Tool is used to extract
  the broken porcelain from broken spark plugs in 2003 to current Ford
  Triton Engines.
• In some cases the porcelain
  will break off in the sleeve and will need to be extracted in order for
  the 39100 to function effectively.
• Unlike other tools that tell
  you to push the porcelain through the sleeve (Ford says specifically
  not to do this), this tool adheres to the porcelain using a special
  perma-bond and then allows a user to extract the broken porcelain from
  the sleeve.

Cal-van Tools 39200 Ford Triton Spark Plug Porcelain Extractor CV39200