And if the panel is nearby I'd have run 20 amp circuits for a shop. Though in his case I doubt he's running the table saw and sander at the same time.I would just pull that 2x4 box and replace it with a 4x4 and wire in two double outlets giving you 4 proper outlets.
It looks like it is mounted to the wall so it would be an easy thing to do.
Do I have to call you out about personally belittling people within the forum again? You can tell them if something is wrong, but you're not Tr#mp, so don't get personal. SorryThat whole setup is a stinking ********.
Better increase your life insurance with the money you saved installing it like that.
And a 13 amp saw can draw well over 20 amps during startup.