So I'm trying to think of a clever way of boring out the hubs
on some alloy wheels I have.

Best idea so far:  make/get a piece of wood the right size to
fit inside the existing bore.  Use a hole saw to drill through
the hub.  The drill bit that keeps the hole saw centred will be
located by the piece of wood.

What works better than that?  I assume there's something...

tabe johnson/87 westy