On Wed, 24 Feb 2021 11:37:22 +0000, Dave Plowman (News) wrote:

Just as an update I've made up the dimmer. Used a Knightsbridge polished
chrome 2 gang plate from TLC. Which I've used before to make 'specials'
like say for AV.

I think the last one I used was chrome on brass. So not that difficult
to drill/work. This one - not in the usual Knightsbridge cardboard box
seems to be polished stainless steel. Looks just fine, but a nightmare
to drill.
Blunted a couple of new 2mm HSS drills while attempting the first pilot
hole. Eventually used a tungsten one. And broke it on the forth.
Enlarged it 0.5mm at a time - it did get easier with the larger sizes.


I bought a baby bench grinder to sharpen drills.