It's called a reuleuax triangle. Look it up it's actually really cool. It a
triangle that is offset on a shaft.

"Brandon" wrote in message
.. .

It's called a reuleuax triangle. Look it up it's actually really cool.
It a
triangle that is offset on a shaft.

===============

Two observations

The shape stated cannot cut a square corner, as evidenced by this
demonstration:
http://mathworld.wolfram.com/ReuleauxTriangle.html

This tool bit should have a stationary second point of contact to
accomplish a gear reduction inside the bit. It would be interesting to
see the internal mechanics to accomplish this.

--

Eric