Advanced science.  Applied technology.


GD&T (Geometric Dimensioning and Tolerancing) Fundamentals Webinar

Jul 14, 2021 to Jul 16, 2021
Drawing with the bearing


GD&T is an international symbolic language used on mechanical engineering drawings to supplement and optimize traditional coordinate dimensioning and tolerancing.  Dan Bauer from ITR holds Senior GD&T Certification from ASME and will be teaching GD&T Fundamentals including the following:

  • What is it, who uses it, and why
  • Metric and inch dimensioning and tolerancing conventions
  • Major Elements of GD&T
  • Key elements and major changes to the last three revisions to Y14.5 and ISO 1101
  • Aerospace and automotive specific standards, requirements, and exceptions to Y14.5
  • How to Interpret Feature Control Frames, Datums, and Basic Dimensions
  • Inspection and measurement options for each of the 14 GD&T Symbols
  • Advantages and Disadvantages of GD&T for Design, Manufacturing, and Inspection
  • Basic Steps for Applying Coordinate and Geometric Dimensioning and Tolerancing to New Designs or Drawings
  • Customized application and interpretation exercises based on Participant Drawings*

This program is appropriate for all management, design, manufacturing, quality, inspection, purchasing personnel to understand the benefits and proper application and interpretation of GD&T.

*Participants are encouraged to submit drawings (with or without GD&T) to the Instructor before and during the seminar for review during the presentation.


  • 350+ page hard copy textbook including ASME Y14.5-2018 revisions, sent directly to each participant at their work or home address prior to the webinar 
  • Pre/post assessment
  • Various references, GD&T inspection calculators, and other tolerancing tools
  • Certificate of Completion
  • Customized exercises based on participant drawings, views, or examples
  • On-going email and telephone support from ITR available

Course Download


Upcoming Classes

GD&T (Geometric Dimensioning and Tolerancing) Fundamentals Webinar in Spanish

July 14-16, 2021

Following is the schedule for each of the three days of the webinar:
9:00 a.m. – 4:00 p.m. Central

Online (at your computer)

Early Bird Registration: $895 per participant before COB Wednesday, June 23, 2021
Registration: $1,195 per participant from June 24, 2021 until registration closes

Space is limited; register promptly.