Thread: drill size
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09-08-2011 #1
Last Activity: 05-04-2020
If I'd noticed your post a bit sooner you could have had a few of mine as I keep plenty of spares for the tapping sizes.
Originally Posted by luke11cnc
Also thread diameter-pitch is only a guide ... hard materials will be easier to drill slightly (0.1mm) bigger. Since 6.75 is not standard you'll want 6.8mm or 6.9mm.
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