When my dad and I ran a sub panel and wire for my saw and planer, we ran a 30amp for the saw and 2 220s for a bandsaw and dust collection. Well.....I picked up a bandsaw that needs a 30amp now. I'm 99% sure the wire for the 20amp not being used is not ok for a 30amp plug but I can check.

If it's not....what about using a 6-30 splitter? It would prevent me from having to unplug the table or bandsaw when I need to switch between them. I'm also the only one that uses my tools and never use more than one at a time. It would be pretty simple to plug one of these into the wall and the table saw and bandsaw into them and be done. Either the linked page or the yellow one that's only $30.

https://www.amazon.com/2ft-L6-30P-L6.../dp/B01LWA3SG5