I use a strong magnet to make a magnetic drill press that can be attached to iron and processed, and I am improving it for woodworking.
I made a drill stand unit that can process with 10 times the accuracy of the memory, a jig that can drill holes at an angle, and a base for drilling holes in wide boards.
Plans are here
https://jsk-koubou.stores.jp/items/5e1eaa6f707cec5d271cb8f9