Fundamentals of GD&T ASME Y14.5 - 2018 Foundational Level ET2150

Topics: Quality, Safety & Maintenance

The 2-day foundational-level Fundamentals of GD&T course teaches the terms, rules, symbols, and concepts of geometric dimensioning and tolerancing, as prescribed in the ASME Y14.5-2018 Standard.

The class offers an explanation of geometric tolerances, including their symbols, tolerance zones, applicable modifiers, common applications, and limitations. It explains Rules #1 and #2, the datum system, form and orientation controls, tolerance of position (RFS and MMC), runout, and profile controls. Newly acquired learning is reinforced throughout the class with more than 130 practice exercises, including more than 60 application problems. 

Each participant receives:
  • Fundamentals of Geometric Dimensioning and Tolerancing 2018 Using Critical Thinking Skills textbook by Alex Krulikowski
  • 2018 Ultimate GD&T Pocket Guide, 2nd Edition

This course provides a complete look at GD&T Fundamentals. For more complex GD&T topics, like the expanded use of composite position and profile tolerances, customized datum reference frames, the translation modifier, and applying GD&T to non-rigid parts, see our Advanced Concepts of GD&T course. 

Learning Objectives

After completing this foundational-level course, you’ll be able to:

  • Describe the types of dimensions, tolerances, and notes
  • Define the key terms used in GD&T
  • Recognize the symbols and modifiers used in GD&T
  • Explain the rules used in GD&T
  • Describe the concepts of worst-case boundary, virtual condition, and bonus tolerance
  • Interpret the various types of geometric tolerances (flatness, circularity, straightness, perpendicularity, parallelism, position, runout, and profile)
  • Describe the datum system
  • Interpret applications of datum targets, size datum features at RMB, and size datum features at MMB

Who Should Attend

This course is valuable for individuals who create or interpret engineering drawings; product and gage designers; process, product, and manufacturing engineers; supplier quality engineers/professionals; CMM operators; buyers/purchasers; checkers; inspectors; technicians; and sales engineers/professionals.


Participants should have a good understanding of GD&T based on the ASME Y14.5-2009 Standard either through work experience or knowledge gained by participating in a course, such as the Fundamentals of GD&T. Basic GD&T concepts are not covered in this course.

You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.

Jim Beary, John-Paul Belanger, Robert Charlton, Evan Kessick, Ming Li, Dale MacPherson, Curtis Pawlowski, Harry Taylor, or Andy Yu

All SAE GD&T instructors are industry professionals with years of experience applying geometric dimensioning and tolerancing on the job.

Our instructors:

  • Have expert knowledge of the Y14.5 Standard
  • Are ASME and/or ASQ certified
  • Have current or recent industrial experience using GD&T 
  • Possess at least five years of experience using GD&T
  • Are experienced and skilled using SAE teaching materials

SAE instructors use identical training materials and lesson plans, so you receive the same class presentation from every trainer.

Duration: 2 Days
CEUs: 1.3

Format: Virtual

Event ID: S-01070

Location: Live Online

Session Info:

  • Session 1 - October 22 (8:30 a.m. - 4:30 p.m. ET)
  • Session 2 - October 23 (8:30 a.m. - 4:30 p.m. ET)
    2 Sessions

  • Fees: $1,299.00

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    Led by our senior GD&T professionals, ETC2109 is available as an add-on service to any live (virtual or in person) instructor led private corporate GD&T course purchase. This add-on GD&T Review is designed to help your staff learn to implement GD&T with real life examples, however it is not designed to address custom consulting projects. Please ask your sales associate about this add-on service.