Advanced science.  Applied technology.


GD&T (Geometric Dimensioning and Tolerancing) Webinar

Apr 25, 2022 to Apr 27, 2022
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.


  • PDF textbook including ASME Y14.5-2018 revisions emailed directly to each participant 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

For more information, please contact Sandra Hawkins.

Course Download


Upcoming Classes

Geometric Dimensioning and Tolerancing (GD&T) Introduction Live Interactive Webinar

June 6-8, 2023

Course Hours Slot 1: 7am to 11am Central or Slot 2: 12pm to 4pm Central
Faculty Office Hours: 30 minutes before and after each session

Online (at your computer)

Early-Bird Registration (before COB May17): $595 per participant
Late Registration (May 18 to COB June 2): $695 per participant

Space is limited; register promptly. Registration ends once availability is full

Geometric Dimensioning and Tolerancing (GD&T) Introducción Webinar en Español

June 21-23, 2023/21-23 de junio, 2023

Course Hours 10:00 a.m. – 2:30 p.m. Central/10:00 a 14:30 Central

Online (at your computer)/En su computadora

Early-Bird Registration (before COB June 2): $595 per participant/Hasta 2 junio: $595 USD por participante
Late Registration (June 3 to COB June 16): $695 per participant/Entre 3 junio a 16 junio: $695 USD por participante