what type of setting are you trying to do?
I think it's called a gypsy setting. The top of the stone will be flush with the surface of the ring. I plan to burnish the circumference of the ring to hold the stone in place.
See photo below. Hole diameter is too large & too deep for the 2 mm stone.
Note: The difficult drilling was at the start, using a twist drill(s) for a pilot hole. I then switched to a round bur, etc., which cut easily.
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