On Apr 15, 5:23*am, David Lesher wrote:
So I broke off a M3 tap in a block of 0.5" aluminum.

Its tip is barely emerging on the far side, and broken below
flush on the feed side.

--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433



I've read in several places that alum works wonders for disolvin taps
in non-ferrous metals. Haven't tried it yet, but here's some reading:
http://www.homemodelenginemachinist....hp?topic=270.0