Greg Guarino wrote:

But ...

The thickness of the jig limits the depth of the mortise. Sort of
rethinking and rebuilding, the through mortises (in 1.5" stock) I'll
need will require extra-long bits.

If the cutting diameter = shank diameter, you can cut down a way, remove the
jig and cut the rest by guiding the bit shank on the hole.

--

dadiOH
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