I've been gapping plugs for 50 years by using that prongy thing that comes on the end of a little spark plug feeler gauge. Little did I know that I could piss away $109 on a tool that will do it for me.
I gotta admit, it's a beautiful tool -- and the listing says it's the last one in stock. Click here:
https://www.ebay.com/itm/Spark-Plug-...sAAOSwkiVd9rRq