Alum, hot water and patience. Desolve the alum in boiling water until
it can't take any more. Turn back to just below simmer and soak the
part. You will see a little guizer of bubbles spewing from the hole as
the alum does its thing. Took me about 4 hours to get a #4 tap out of a
block of aluminum. Works with brass too but don't try it with steel. :-)

Drew Dalgleish wrote:
Can someone please tell me where to go to search past postings to this
site. Or a while ago someone told how to remove a broken tap from
aluminum. Anyone remember how it's done.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com