This style toolholder has been around since the late 1800's, according
to what I read in a forum. Universally approved - "I'll never go back"
they say. Yet, not that widely used, I think. A few make their own, as
I did. A few buy the $140 - $150 commercial one (Eccentric Engineering).

I think that these could be hugely popular at the right price. $50?
And I think that they could be produced very cheaply on a CNC mill. The
only tricky part is getting the CAD file, what with the funny angles
involved.

Here is a good picture of the Eccentric Engineering one:
http://home.comcast.net/~bobengelhar...ToolHolder.jpg

Whattaya think - would the CAD file be that hard & what could they be
made to sell for?

Bob