GeoTol Pro 2020 Fundamentals Workbook


  • 400 pages
  • hundreds of graphics in full color
  • covers all concepts in ASME-Y14.5-2018
  • comparisons to ISO-GPS with major differences
  • packed with student exercises
Get $10 off a workbook (ebook or printed version) with the purchase of any of the GeoTol Pro Online courses. No code needed.


The GeoTol Pro 2020 Fundamentals workbook is our latest GD&T workbook updated to ASME Y14.5-2018. It also teaches differences to ISO-GPS standards released thru 2020. The book follows along with our instructor-led and online GD&T courses but is also great as a stand-alone reference.  This book covers all concepts found in ASME Y14.5, but it also goes beyond the standard showing practical uses of the GD&T concepts, inspection methods, and reporting techniques. This book can be for a beginner, intermediate, or advanced user. It can be for design, manufacturing, or quality personnel. There are 400 pages and 65 practical exercises to get you either started, refreshed, or elevated in your knowledge of GD&T concepts and symbols.

Separate solutions manual available.

View Outline

GeoTol Pro 2020 Workbook
Unit 1 Introduction – Symbols and Terms
Unit 2 Limits of Size
Unit 3 How the Geometric System Works
Unit 4 The Datum Reference Frame
Unit 5 The Three Product Plans and Position Inspection
Unit 6 Orientation Tolerances and the Hierarchy
Unit 7 Virtual Condition and Material Boundary Modifiers
Unit 8 The DRF II – Datum Targets and Irregular Surfaces
Unit 9 The DRF III – Advanced Concepts
Unit 10 Form Tolerances
Unit 11 Profile Tolerances
Unit 12 Position Tolerances
Unit 13 Coaxial Controls
Unit 14 Application Exercises
Appendix A Part 1 – Principle Changes and Additions in the ASME Y14.5-2018 from 2009

Part 2 – Principle Changes and Additions in the ASME Y14.5-2009 from 1994

Appendix B Differences between the ASME Y14.5 and ISO-GPS standards

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