This is similar to the tubing straightener I use. Using a permanent marker to make a line down the length of the line helps when making bends. Helps to see the angle. My straightener has a hole in it the a permanent marker or paint pen fits in. It's buried in the garage somewhere. It's one of those things you never need until you need it. With the soft parts store stuff I bend it by hand. The steel lines I use the boxed end of a little wrench or my tubing bender.
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