Browse Learn PD025200-90

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 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 (with satisfactory final exam score)

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)
  • Broadband-1Mbps minimum

2.4 CEUs


Access Period:90 Days

Duration: 24 Hours
Members save up to 20% 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.