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JJackrabbit
1150 Views, 6 Replies

Thread milling diameter

Hello

I'm trying to thread mill in steel. I need to make a bunch of M8 holes.

In my drawing the holes are 6.8mm. I also drilled the holes 6.8mm

But how does the threading option work?

I entered the pitch (1.25), if I enter the diameter of 6.8mm it won't cut away enough material.

Do I need to enter 8mm? or how is this being calculated.