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GD&T Fundamentals based on ASME Y14.5M-1994 PD025200-90


The course contains 28 lessons that explain the terms, symbols, modifiers, rules, and basic concepts of geometric tolerancing as prescribed in ASME Y14.5M-1994.


Upon completion of this course, you will be able to:

  • Describe engineering drawings: importance, drawing conventions, dimensions and tolerances, standards
  • Explain why geometric tolerancing is superior to coordinate tolerancing
  • Describe the key terms used in geometric tolerancing
  • Recognize the modifiers and symbols used in GD&T
  • Explain the rules used in GD&T
  • Describe the concepts of basic dimensions, worst-case boundary, virtual condition, inner and outer boundary, and bonus tolerance
  • Interpret the various types of tolerances (flatness, straightness, circularity, cylindricity, perpendicularity, angularity, parallelism, position, concentricity, symmetry, runout, and profile)
  • Describe the datum system
  • Interpret applications of datum targets, feature of size datum specifications (RFS & MMC)
  • Describe the fundamental concepts of tolerance of position
  • Interpret tolerance of position special applications

Materials Provided

  • 90 days of online single-user access (from date of purchase) to the 24 hour course
  • Instructor follow up to your content questions
  • 2.4 CEUs*/Certificate of Achievement (upon completion of all course content and a score of 70% or higher on the final exam)

Is this ETI On Demand Course for You?

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.

For More Details

Email, or call 1-877-606-7323 (U.S. and Canada) or 724-776-4970 (outside US and Canada).

  • Dimensions and Drawings
  • Key Terms
  • Modifiers and Symbols
  • GD&T Rules
  • GD&T Concepts
  • Flatness
  • Straightness
  • Circularity
  • Cylindricity
  • Planar Datums
  • Datum Targets
  • Size Datums (RFS)
  • Size Datums (MMC)
  • Orientation Controls
  • Perpendicularity
  • Angularity
  • Parallelism
  • Position - Introduction
  • Position - RFS/MMC/LMC
  • Position - Special Applications
  • Fastener Formulas
  • Concentricity
  • Symmetry
  • Circular Runout
  • Total Runout
  • Introduction to Profile
  • Profile of a Surface
  • Profile of a Line

  • Windows 7, 8, 10 (other operating systems and mobile platforms are not supported but may work)
  • Internet Explorer 11, Mozilla Firefox 37 , Google Chrome 42 (other browsers are not supported but may work)
  • Adobe Flash plugin
  • Broadband-1Mbps minimum

2.4 CEUs


Access Period:90 Days

Duration: 24 Hours
Members save up to 10% off list price.
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Special Offers: Quantity discounts and corporate access options also are available - complete a Corporate Learning Solutions Request Form for a quote.