> The Dremel-ish ones I used were 25 x 0.9mm, these aren't big enough
> (and the tool gets in the way) to fully cut the can as I couldn't
> cut the dome in the bottom.  That's about 12mm or deep.

Here in the US, Dremel sells an EZ lock mandrel with various 40mm
diameter disks.  One is a fiber reinforced cutoff wheel.  I tried
it and it is more tolerant of side-force than the 25mm wheels.

Dremel also has the EZ544 wood cutting disk; 1-1/2 inch diameter
designed to cut wood up to 1/2" thick.  I expect it would work
quite nicely on aluminum cans, particularly if you had a guide
to ensure the tools was moving in a straight line.

						Lee Jones
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