Came across another cool video from Stefan on doing very small parts, he had sub-2mm solid carbide boring bar from Guhring there :
https://youtu.be/QJIdKqzWuDY?t=275
https://youtu.be/QJIdKqzWuDY?t=275
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Hi
From my original post:
" The bore only needs to be about 10mm deep.
The hole diameter, concentricity tolerances are wide. I want to epoxy or Loctite a 2mm pin in the bore. An oversized hole can be used to compensate for errors."
Hi
I have purchased 10x 2.5mm tapered diamond drills from China. They are cheaper than a Big Mac.
I figure the taper will maximise the diamonds cutting the Alumina, increasing tool life and cutting rate.
I have the option of drilling out to a 2.5mm hole, or drilling a tapered socket into the Alumina.
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