This in-depth course covers the GD&T system, including why it 

reduces costs, how to interpret the symbols, and how to apply these 

tolerances correctly. Participants will learn the basic definitions and 

rules, the importance of datums, the meaning of each tolerance, and 

sample ways of gaging geometric tolerances. The class is mainly 

lecture, with many practice exercises. Participants are encouraged 

to bring sample parts and/or prints (with or without GD&T already 

applied) to class for questions. Time is reserved for discussing the 

application of GD&T to your parts/prints. 

Learning Objectives 

By attending this seminar, you will be able to: 

Describe the tolerance zones defined by each symbol 

Determine when to use Rule #1 to control form and when other 

controls are appropriate 

Recognize correct syntax for feature control frames 

Relate common gaging and inspection methods to geometric 

tolerance zones and feature control frames 

Correctly apply and interpret the MMC modifier 

Assess various datum schemes against product functionality and 

manufacturing and inspection performance 

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