Description: This little round on/off toggle switch is rated up to 10A at 125VAC and can be panel mounted in a 20mm diameter hole. It’ll also look pretty slick in your project.
Based on 2 ratings:
Good quality round switch, easy to install due round package and spade connectors (5mm wide ones), no soldering required. There is small notch that must be taken account during installation, but that’s good to leave as it is, prevents switch spinning around in hole. Also, 6A/250VAC, not well seen from picture.
A very tactile, stable, and satisfying switch I’ve used in several projects. However, I’ve never been able to install this in a 20mm hole without breaking off the bits on the side with a pair of pliers? Is there some trick I’m missing here?
Sorry, I’m not familiar with any tricks. You might size up your hole slightly, though too much and you might end up with a loose fitment. Sorry I don’t have any better tips. Happy hacking!