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Thanks a bunch, that is a really neat idea. :)

I just called a machinist friend and he said to come over cause he has a bunch of 0-80 taps! :)

Really very nice work...as usual! :)

A point for clarification please....

when you said "Than you need a 2mm brass rod with a inner diameter from 1,4 mm to tap it."
Did you mean that you buy a...