I needed to cut a circular piece of 10ga today and didn't want to use my cutting torch so I decided to make a circle guide for the plasma torch.
It is a simple tool made of a thin piece of round tubing some 1/2" sq tube a heavy 5/8" nut a couple of 1/4- 20 bolts and a magnet
I heated the nut to red hot then drove a square punch through it then cross drilled and treaded it to attach the magnet and a locking screw.
the round tubing had to be bored to fit the plasma torch then was welded to the sq tubing.
Never try to tell me it can't be done
When I have to paint I use http://kbs.justoldtrucks.com/
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