Effective communication and consistent measurement across all engineering disciplines and processes are essential to the design and manufacture of the highest quality products. Geometric dimensioning and tolerancing (GD&T) is key to achieving these goals.

GD&T defined

GD&T is a standard language used to communicate the allowable geometric variation on parts. The language includes symbols that are used on mechanical engineering drawings to quickly and accurately define design, manufacturing, and inspection requirements for various features on components and assemblies.

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