RE: My Rescued Vintage Stand Mixer

It looks like there is an actual hole that you're sticking your screwdriver into for you switch, so anything that you could epoxy into that hole should work as a fairly permanent fix. I recommend JB Weld original formula, but any epoxy made for steel should do the trick.

These old mixers did usually require a little more force to slide into the 'off' position, but it may also have a buildup of that old grease preventing from sliding all the way to 'off', so you are wise not to force it too hard. It's unlikely that it will actually get stuck in the off position, but forcing it may damage the switch so that none of the settings work properly.