jim rozen wrote:

In article , Don Huseman says...

... I next have
champhered drill rod tig welded up for a little extra force. Grind
flush the weld and use it.

Be careful as some of the materials used to make
taps will become brittle if tig welded, I've seen
them snap near the weld if done that way.

As mentioned, silver soldering is a better approach.

Jim



Couldn't agree more. Silver solder is a wonderful thing.

michael