spark plug cleaner...?

My father-in-law has that exact unit. Works pretty well but like OP said, uber scrooge. Buy new plugs. All it takes is a couple little grains of grit to score a cylinder wall.:banghead:

I've had one of those plug cleaner for going on 20+ years. they work real good but you do have to have a large sewing needle to get the few grains of grit out.