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GD&T Symbol Application Guide:

The GD&T Symbol application Guide is a ready reference that guides you about how to express tolerances in GD&T. It discusses the correct syntax for using the 14 Geometric Tolerances and also for using Datums for various features that you encounter in GD&T.

This Application Guide details the do's and dont's of expressing tolerances in Feature Control Frames under various situations. The Application Guide is based on the ASME Y14.5-2009 standard.


Click on the Tolerance Name on the guide to navigate through the tolerances.


SymphonyTech have an expertise and have done a significant amount of work in Geometric Dimensioning & Tolerancing as well as Dimensional Variation Analysis (Tolerance Stack-up Analysis). We help our customers through Training, Consulting and Software for GD&T.

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