"Arch" wrote in message
...
I plan to make some inserted bit hollowing tools with arm braces. Two
45deg. 1/2 in pipe couplings and a 6 in nipple for the 'Z' and a 10 in
nipple padded with tape for its tail. I use 3/4 CR bar pipe-threaded for
the 1/2 in coupling at one end and drilled for a bit and tapped for a
setscrew at the other end. Ugly? Yep.

Consider one of those auxiliary antirotation toolrest types of handles -
Jamison tool - or one of those swiveling V block rests to get you a broad
support rather than a narrow fulcrum.