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19-02-2016 #1
Last Activity: 06-07-2022
ok, the precisionist in me is screaming right now because I work with drawings, precision and accuracy on a day to day basis.
Everything has a tolerance, even ground shoulder bolts. A vernier caliper is not the golden standard as it has a 0.02+/- accuracy tolerance. A micrometer on the other hand is the standard. Would you need this kind of precision for your application? That is your decision.
Now when you use a 12mm drill, you are likely to get a 12.1-12.2mm hole. If you want an accurate hole, you need to ream it.https://emvioeng.com
Machine tools and 3D printing supplies. Expanding constantly.
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