Beautiful work. I am a toolroom machinist myself. If you don't mind please tell how you did the slot with the angled bottom.

I have a couple of ideas but not sure what works the best for you.
It is all surface grinding after roughing out most of the material from the mill.
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Then I create a model of the angles and cut the pocket out with a ball endmill using software that can cut in 3D, this way saves mistakes.
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Then I finish up on the surface grinder, it is important to get the serrated faces square to the vise slide, this is done with side wheel grinding the large back angle using a sine vise. Must have experience in side wheel grinding and knowing how to dress the wheel correctly. Funny that I use a Wilton 7" sine vise, I bought it on e-bay new for $150 and just love it. This is the first important area to get right.
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Once this is done then it is fitting in the under cut faces with a sliding sine angle dresser to match the vise face. I use a 3" sine angle dresser and have to creep up on this dimension by checking the fits using small pin gages to measure the gaps. Eventually I get it.
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It is time consuming to make these jaws, and make them fit right. I guess I do it to stray away from the everyday grind of drilling holes and cutting serrations. I hope this made sense for you XCMTB83, if you want to try your luck I would be happy to help. Not to many Toolmakers left in this country but plenty of CNC operators.
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