Uploaded February 2026 | Updated September 2026, 1 week ago

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Unlock the fundamentals of Geometric Dimensioning and Tolerancing (GD&T) by understanding the importance of Datums. In this Proto Tech Tip, Chris talks about how datums serve as the theoretical reference points, lines, or surfaces that ensure consistency in manufacturing and inspection for custom sheet metal and CNC machined parts.

Watch our GD&T Basics video: youtube.com/watch?v=Pbl9h4Dset0
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