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Jeremy Hill

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GD&T 101: An Introduction to Geometric Dimensioning and Tolerancing

This article was originally published in February, 2017 by Jeremy Hill. The content has been updated. Geometric Dimensioning and Tolerancing (GD&T or GD and T) is a language of symbols and standards designed and used by engineers and manufacturers to describe the shape (geometry) and size (dimensions) of a product and facilitate communication between entities […]