Browse Learn ET7103

ISO Geometric Tolerancing 2-day ET7103

Providing you have a basic understanding of mechanical drawings, this course teaches how to use engineering drawings that use the International Standards Organization (ISO) standards.

Utilizing the expertise of world-renowned GD&T expert Alex Krulikowski, this course will teach you to recognize what is required on a standard-compliant drawing and recognize geometrical tolerances based on the ISO standards. The course combines information from dozens of ISO standards into a logical understandable topic. Newly acquired learning is reinforced throughout the class with more than 150 practice problems.

Each attendee receives a robust collection of learning resources including:

  • Alex Krulikowski's ISO Geometrical Tolerancing Reference Guide
  • An ISO Geometrical Tolerancing Workbook
  • Class handouts
Tens of thousands of students have learned GD&T through Alex Krulikowski"s textbooks, self-study courses, computer- based training, and online learning center. Students who attend courses like this one walk away with more than knowledge. They gain on-the-job skills because the learning materials are performance-based.

Learning Objectives
By attending this class, you will be able to:
  • Describe the ISO standards system on technical drawings
  • Recognize ISO drawing practices
  • Explain the structure of GPS and the domains of features
  • Recognize the symbols used in geometrical tolerancing
  • Describe linear size and size conditions
  • Explain the principle of independency and the envelope requirement
  • Explain geometrical tolerancing concepts: MMR, LMR, RPR, virtual conditions, and collective requirements
  • Describe the ISO 286 system of limits and fits
  • Describe the datum system (planar datums)
  • Interpret datum target and size datum specifications
  • Interpret the flatness, straightness, roundness, cylindricity, perpendicularity, angularity, and parallelism tolerances
  • Explain the fundamental concepts of position tolerances
  • Interpret the position tolerance at MMR and special applications
  • Interpret the coaxiality, concentricity, symmetry, circular and total run-out tolerances
  • Interpret the profile any surface and profile any line tolerances
  • Explain the ISO system for general tolerances
  • Interpret work piece edge specifications
  • Interpret surface texture and surface imperfection requirements

Who Should Attend
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.

Students should have completed an Engineering Drawing Requirements course.
ISO Standards and Drawing Conventions
  • The ISO standards system used on technical drawings
  • ISO drawing practices
GPS Basics
  • Modifiers and symbols used in geometrical tolerancing
  • Fundamental ISO geometrical tolerancing concepts
  • Feature types and levels
  • Linear size and material conditions
  • Independency and envelope principles
  • Key geometrical tolerancing concepts: maximum, least, and reciprocity requirement; virtual condition; bonus tolerance
Limits and Fits
  • The ISO 286 system of limits and fits
The Datum System
  • The datum system (planar datums)
  • Datum target specifications
  • Datum specifications
Form Controls
  • Flatness
  • Straightness
  • Roundness
  • Cylindricity
Orientation Controls
  • Perpendicularity
  • Angularity
  • Parallelism
Location Controls
  • Position
  • Position tolerance RFS, MMR, and LMR
  • Concentricity
  • Symmetry
Location Controls
  • Circular run-out
  • Total run-out
  • Profile tolerance
  • Profile any surface tolerance
  • Profile any line tolerance
General Tolerances
  • ISO system for general tolerances for linear and angular dimensions
  • ISO system for general tolerances for geometrical tolerances (ISO 2768-2)
Workpiece Edges
  • Interpret workpiece edge specifications
Surface Texture and Surface Imperfections
  • Surface texture and surface imperfection requirements
ISO/ASME Comparison
  • Major differences between the tolerancing standards
Course summary,

All of ETI's instructors are industry professionals with years experience applying GD&T on the job. ETI trainers have:

  • Expert knowledge of the Y14.5 Standard
  • ASME certified and/or ASQ certified
  • Current or recent industrial experience using GD&T 
  • At least five years experience using GD&T
  • Experience and skill using ETI teaching materials

Our instructors use identical training materials and lesson plans, so you receive the same class presentation from every trainer.

Hotel & Travel Information

Fees: $1415.00
SAE Members: $1132.00 - $1274.00

1.3 CEUs
You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.

For additional information, contact SAE Customer Service 1-877-606-7323 (724-776-4970 outside the U.S. and Canada) or at

Duration: 2 Days
Upcoming open enrollment dates being scheduled. Please check back.