At this point you can turn over the grinder and tap out the switch. But the black rod is in the way. I just used a length of wooden dowelling which fitted past the rod and tapped with a rubber hammer.

Once the switch is past the clips, you will need to remove the spacers, in my case, the two cocktail stick parts. Otherwise they will be in the way.

Now you can simply push or tap until the switch comes out as shown.