On Mar 16, 11:23 pm, "David" cosmosatnointerbaunspamdotcom wrote:
Hi folks,

I'm using a General mortising machine and I'm wondering if this is what I
should be getting
as a mortise?

I've adjusted the chisel and bit with the .40c method and tried a few
variations but I still end up with that little collar
at the bottom of the mortise.

I've sharpened the chisel using the Lee Valley cone sharpeners, I've gently
tuned up the bit so that it is sharp.

http://i13.tinypic.com/2z7pmab.jpg

Anyone have some suggestions as to what I might try to correct this?

You could make a punch from a 6" piece of square steel and hammer the
bottom of the mortise flat, or you could just leave it as is for glue
space.