5 1/2 inches, slightly below average, that's why I'm getting into engineering. I'm not trying to brag. just letting people know they don't have to baby talk to me and that I am capable of learning what I am asking about. This is the kind of discussion I was hoping to avoid. It doesn't matter how you approch these forums if you come in all humble and meek people assume you're an idiot and you won't get it anyway. If you want to coment on my tone or attitude go pester people on FB. I want to talk about machine work. If you act humble people get a big head and put you down, if you act confident people get insecure and put you down. I guess all forums are a waste of time and no matter where you go all you get is people trying to prove they are better than you. My God children grow up! I haven't put anyone down I haven't claimed to be smarter than anyone here. everything I have said has been relivant and I still get nothing but pissing contests from people I am asking for advice. If anyone is actually interested in helping me PM me. I can't put up with 40 year old 3rd graders.