I have very good luck with any large tubing of any kind and getting a square
cut. Just wrap a piece of paper (I use printer paper) around the tubing and
align the edges that overlap. I then tape the overlap and use a permanent
marker to scribe a line along the edge. Remove ofr slide the paper out of the
way and cut the tubing while rotating and follow the line with the saw blade.
Then dress the cut with a file to get rid of any burrs on the cut especially
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