On Wed, 22 Nov 2017 08:39:36 -0500
"Jim Wilkins" wrote:

snip
My first home made boring bit holder was a rod slit lengthwise
horizontally and I regretted it for the loss of shear stiffness. Now I
make custom tool bit holders from bar stock nearly the height of the
QCTP slot.

Yeah but other than time you didn't have a lot invested and you
learned something

I was thinking that an offset hole in rectangular stock might be
better. It could give you different heights and/or rigidity depending on
how it was installed.

--
Leon Fisk
Grand Rapids MI/Zone 5b
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