

Cut a circle of plywood roughly the inner diameter of the pipe, glue it into the end of the pipe (or just snug it in if its a tight fit), then screw down through this into the bottom board.
Can just unscrew it and screw it somewhere else if needed. Can also unscrew it and leave it on a bench if you need to swap tools out.
It’s weird to me that you would click a link and without your consent JS code can be downloaded from wherever and run on your computer.
NoScript is always on for me (on my personal PC). Sites that don’t load at all are probably not worth visiting.