Cal-Van Tools Triton Spark Plug Porcelain Extractor for Ford has a tool which is used to extract the broken porcelain from broken spark plugs (2003 - 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. Other tools instruct pushing the porcelain through the sleeve (but Ford says specifically not to do this). This tool adheres to the porcelain using a special perma-bond. It then allows the user to extract the broken porcelain from the sleeve.