I have a new need, and don't seem to be able to google it up. I probably am not using the right words in my search. I would like to build some livestock panels and gates, out of heavy pipe. I would like to buy a pipe notcher ( hand operated ), to fit a pipe up to another pipe for a 90 degree weld. In the welding shop at Boeing, we had an outfit mounted on the wall, that worked like an arbor press. You could put the end of a piece of sch. 40 pipe in it and pill the long handle down, and it would munch a simi circle out of the pipe, then rotate the pipe 180 deg. and do it again. You ended up with a set of notches on your pipe, which would fit quite nicely, on your upright pipe, to make a 90 deg. the only thing I came up with, was hole saws that you put in your drill press, and I can't imagine , those working very well, without jumping around, and causing a problem. Can anyone point me in the right direction?