Andy; once I get my mitts on a couple turbo plugs(have to order some now)..Maybe I can grind, a drill bit for you,to experiment with..I realize, the thread is for, the average guy ,with minimal tools,but a bench grinder, and a Drill bit ,is something most fellows have near by,with a drill press, too.Would kind of like to see, what you could do with that bit.I don`t have any Glow heads ,or buttons to try this out for myself, YET,or I would..It`s definately nice to know, that once ,the factory made stuff is gone, or burnt out,We have a solution,to keep our little engines going.