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 ETI's Engineering Drawing Requirements course or equivalent.
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, final learning assessment

All of ETI's instructors are industry professionals with years of 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 of 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: $1280.00
SAE Members: $1024.00 - $1152.00

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

To register, click Register button at the top of this page and submit the online form, or contact SAE Customer Service at 1-877-606-7323 (724/776-4970 outside the U.S. and Canada) or at

Duration: 2 Days
May 1-2, 2018 (8:30 a.m. - 4:30 p.m.) - Livonia, Michigan