7e5dartsport: Thank you...that is precisely what I needed.
B3RE: Hmm...I only wish I had access to such machinery (lathe)...no seriously, I would love to learn and try this...but for this guy, it's very much a "poor man's garage" approach...
I wasn't aware of your machining capabilities, but I figured it was worth suggesting. When I had to make them, it was out of sheer necessity, because this company, which will remain anonymous, couldn't seem to hold a tolerance on the plug bores, and nothing in the expansion plug catalog would fit. Didn't know if you might be in the same predicament.
