Worse yet epoxy the switch in? Jebus guys. You can get a heli-coil for any thread pitch and size.
As far as the taps go they are close but not quite the same as standard taps. I've proven this to myself on several occasions. For instance a Heli-coil tap for a 5/16-18 thread bolt hole looks and is nearly identical to a 3/8-18 tap but if you use the heli-coil tap to thread a hole you can't get a 3/8-18 bolt in it, almost but not quite.
