Originally Posted by Sailsarefull
Did you have any issues with the thickness for small switches? I will mount a VHF
(should be no problem as just a cutout), and a panel like yours.
This is why I use 1/4" base plus smaller section panels
on top also 1/4". This allows you to mount the switches in 1/4" while you still get the support of 1/2". It is more work of-course.
Alternatively, you can drill from the back side. Start with a Forstner drill bit that is big enough to allow room for the housing of the switch. Drill halfway into the material, then switch to the smaller bit for the mounting thread of the switch and finish the hole
The problem is that you need access to the back of the panel for this.