>
> Has anyone tried to drill holes through the bed of a toolmaker's vise to attach it like a Hermann Schmidt vise? Are these vises cast? Ductile iron? Steel? I know milling slots is tricky.
>
> Adam
>
This would be a job for your home built sinker EDM.
A copper tube would "drill" the hole, then switch to a brass rod to burn a counterbore if desired.
Trying to "Drill" this with conventional tooling and methods would cost you more than the vise did. Keep in mind that the break thru on the bottom side on most vises will be an interupted cut that might shatter many common solid carbide drills.
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