Tube notcher. By Made by Dad. 9:44 video:
https://www.youtube.com/watch?v=GKVvFqy1qHU
Related:
Tube Bender Build Guide
Lathe Tubing Notcher by tmate3
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Tube notcher. By Made by Dad. 9:44 video:
https://www.youtube.com/watch?v=GKVvFqy1qHU
Related:
Tube Bender Build Guide
Lathe Tubing Notcher by tmate3
Usually a tubing notcher cuts the notch with a holes saw, or I have one that cuts a nibble out of the tube with a die punch.
This one sands the tube. It works and certainly can make any angle joint. And then when you need a different size tube, you can make another roller piece.