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Home of the GD&T Hierarchy and other GD&T Products and Training

Tec-Ease develops, sells and provides GD&T On-Site and Online Training, GD&T Pocket Guides, Wallcharts, Textbooks and Workbooks. All training and products are in accordance with the ASME Y14.5-2009, ASME Y14.5M-1994 and other ASME Standards.

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Introducing The GD&T Hierarchy Coach with Closed Captioning. Learn More!

Free Download of the GD&T Hierarchy Pyramid

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  • "I've learned more in just a few hours with the Tec-Ease GD&T Hierarchy Coach than in 12 weeks taking a similar on-line program. I look forward to the time I get to spend viewing the presentations and taking the interactive quizzes. Here at FOX the Tec-Ease GD&T Hierarchy Coach is rated "best in class".
    - Marvin D.
  • "Thank you for all that you do. Your "Tips" are INVALUABLE -- I frequently refer to the archive for advice when I run across a sticky tolerancing puzzle."
    - Barbara P.
  • "I must say that I think you are the best GDT trainer/vendor of the many available. I have purchased your GDT charts, aids, and "The GDT Hierarchy" and found them to be clear and well illustrated."
    - Michael W.
  • "I absolutely love this course! (The GD&T Hierarchy Coach) I can go as slow as I want and go back and review slides if I need to. This is the way to go. I don't interrupt others learning, yet I get to fully understand before I move on."
    - Gwen M.
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