@perrow - man tackar!:) I actually use that diamond disc a lot, to trip the PCBS to shorten pot lugs to even them out and what not, VERY usable. But I have only one, that came with some large accessory pack that I bought (på Jula) for like $15 and I'm so afraid that it will breake (literraly I cut like 50pcbs with it in no time).
@astronaut my dremel is like perrow's, it takes up to 3,2 mm but anything less then that is good too, so I can use cheapo hss mini drills too.