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Inspection of Geometric Tolerances Course

Who should attend: Those who have already taken a fundamentals course in geometric dimensioning and tolerancing in accordance with the ASME Y14.5M-1994 standard. Production and inspection will learn the best ways to inspect geometric tolerances using available resources. Designers and engineers will gain a deeper understanding of GD&T principles and the consequences of their application.

The Need: This advanced course sharpens your Geometric Tolerancing skills and makes the tool even more useful.

"You can't make what you can't measure because You don't know when you've got it made."

Course Description: (16 hours) This intensive workshop will provide you with guidelines for selecting the most appropriate inspection methods for inspecting a part feature, low cost functional gage design principles, criteria for selecting company/division gaging policy and an overview of inspection equipment capabilities.

Optional Day: (8 hours) Ask about adding an additional 8 hours of training that includes hands-on inspection of your parts.

Learning Objectives

  • Understand the guidelines for selecting the most appropriate inspection methods for validating tolerances on engineering drawings
  • Determine the theoretical design size of a gage
  • Apply gage tolerance and wear allowance
  • Discern between measurement and verification
  • Replace attribute gaging with variables gaging
  • Calculate geometric tolerances and boundaries

Course Objectives

  • Gaging and Layout Inspection
  • Gaging Policy

Factors Affecting Gage Selection

  • Measurement Methods (Dedicated vs. Flexible)
  • Design's Role in Inspection and Gaging
  • Rules Related to Gaging and Inspection
  • Boundaries

Features of Size

  • Finding an Axis or Center Plane
  • Maximum Material Condition (MMC)
  • Least Material Condition (LMC)
  • Regardless of Feature Size (RFS)
  • Measuring Size (Rule #1)

Profile Inspection

  • Inspection Machines
  • Coplanarity
  • Composite Profile Tolerancing
  • Profile Inspection Techniques


  • Perpendicularity
  • Parallelism
  • Angularity
  • Tangent Plane

Inspecting Position

  • Hard Gages and Layout Inspection
  • Projected Tolerance Zone
  • CMM Technique
  • Layout Inspection
  • Graphical Analysis
  • Assigning Gage Tolerance and Wear
  • Allowance
  • Caliper Measurements

Implied Conditions

  • Screw Thread Rule
  • Projected Tolerance
  • Gears and Splines

Inspecting Coaxial Features

  • Position
  • Profile Runout
  • Concentricity
  • Gage Simulation with an Indicator


  • Flatness
  • Straightness
  • Circularity (Roundness)
  • Cylindricity

Additional Information:


Max says -
Call Tec-Ease today to schedule your GD&T training!