JEGS Easy View Spark Plug Indexing Sockets allows you to view the indexing mark on your spark plug to insure it is installed with the electrode in the proper location for maximum power. Can be used with JEGS 555-40355 and 555-40356 to properly index your plugs! For use with a 3/8" ratchet and available for 5/8" and 13/16" plugs.
555-805010 – Easy View Spark Plug Socket – 5/8”
555-805011 – Easy View Spark Plug Socket – 13/16”
For additional information, visit
http://www.jegs.com/p/JEGS/JEGS-Easy-View-Spark-Plug-Indexing-Sockets/1330585/10002/-1.