Whats that saying about measuring twice and cutting once...? :p
I would presume that 80mm is a fairly standard size, and you would be hard pressed to find something (a little bit) different in size from it. The flange on the top should have a larger diameter than 83mm, so can you just run around the edge of the hole that you drilled with some 2mm foam and glue, and then sit the cable tidy inside that? Maybe drive a couple of short screws at a 45 degree angle through the cable tidy into the board to make sure it stays there
> Whats that saying about measuring twice and cutting once...? :p
lol - if only I had measured once!
Yeah, I might go with your suggestion - it will probably look ok. The interesting thing is that all the "standard" cable tidy sizes I can find dont seem to match up with the "standard" hole saw bits you can buy. They are all a few mm different of each other (unless I buy an adjustable hole saw) - whats up with that?!