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Simplified Training Framework

Real-World Examples and Prints

Make Better Technical Decisions

Are You Overwhelmed by the Complexity of GD&T Training?

  • Confused by the many Geometric Dimensioning and Tolerancing standards and theories?
  • Worried that you’re not using GD&T correctly?
  • Struggling to learn the dozens of GD&T symbols in your spare time?
  • Relying on YouTube for looking up things on your prints?
  • Frustrated that GD&T training isn’t easily accessible?
  • Searching for customizable GD&T training for you or your company?
  • Want learning GD&T to be simple and straightforward?

Simplify Your Engineering Studies with Our Specialized Geometric Dimensioning and Tolerancing Training Framework.

Learn GD&T at your own pace and apply your knowledge with confidence in the real world.

24/7 Convenient Access

At home, at work, or on-the-go. Access training materials from your computer or mobile device whenever it’s convenient for you.

Real World Application

Learn practical knowledge from industry experts and implement it immediately in your workplace.

Effective Video Content

View all essential GD&T standards and concepts delivered in quick, easy-to-understand videos.

Interactive Instruction

Send questions to your instructor and engage with other students on our platform’s exclusive forum.

Customizable For Teams

Training can be tailored for on-site or online settings, making it ideal for individuals, small groups, or large companies.

Money-Back Guarantee

All of our training plans come with a full 30-day money-back guarantee.

Cost-Effective Plans

Get the best GD&T training and save hundreds of dollars!

Interactive Learning Materials

Receive a premium wall chart, graded quizzes, printable handouts, and an official completion certificate.

 Completing our course is like adding five years of experience to your resume.

GD&T BASICS: Innovative Training for Technical Professionals

Whether you’re new to engineering or an industry veteran, the specialized knowledge you gain from our course will strengthen your professional skill set and help you advance in your career.

  • CNC Machinists
  • Measurements Technicians
  • Quality Engineers
  • Current Engineering Students
  • Design Engineers
  • Entry Level Engineers/Technicians
  • Engineering & Production Managers
  • CAD Engineers
  • Machine Shop Owner or Operators
  • Automotive Engineers
  • Mechanical Engineers
  • ...and More!

Companies That Trust Us For Their GD&T Training

How does it work?

Register for the Course

Learn GD&T Basics

Become the Go-To Engineer

Go-To Engineer Stories

GD&T Basics / Engineer Essentials LLC

This course offers a great overview of all the key concepts of GD&T. I teach CNC machining at a technical school and found this course to be an excellent refresher on the topics I had encountered before in the workplace. The course taught me several new things about conditions and cases I had never experienced or considered, and cleared up some common misconceptions I had about GD&T practices. The material is delivered at a level that is accessible to all skill levels, from machinist apprentices to senior design engineers. The course is well formatted, contains excellent graphics and animations, and provides clear explanations for tricky topics. After just a few weeks, the GD&T Basics Fundamentals course can teach you everything you need to know to read and use GD&T in a manufacturing workplace.

GD&T Basics / Engineer Essentials LLC

The course was extremely well-taught and made difficult concepts as easy as possible to grasp. Even after just 14 hours of this course I’m already one of the more knowledgeable people at my company with GD&T, because this course is thorough and leaves no gaping holes in knowledge. I’m looking forward to the advanced course.

Machine Shop Owner
GD&T Basics / Engineer Essentials LLC

Engineer Essentials provides the best resources for learning GD&T. Their content is A+. It's approachable, adheres to the standard and 100% relevant to modern manufacturing. I am a constant advocate of the resources Engineer Essentials provides. Thanks for helping me advance in my career and actually get excited about GD&T!

CMM Programmer
GD&T Basics / Engineer Essentials LLC

Recently, I passed the ASME GDTP Senior level exam. I got amazing help from your training course! Your lessons are great! Very easy! When I studied the ASME standard, it is just text, and text only... I only realized the true concept of each GD&T concept from your course.Thank you very much!

Mechanical Designer
GD&T Basics / Engineer Essentials LLC

The GD&T Basics Course is very helpful. The instructors are extremely responsive with everything I asked answered less than a day later. This course has been extremely helpful for learning GD&T and a great resource!

Production Machinist
GD&T Basics / Engineer Essentials LLC

I am a MET student and this is WAY better than my book. Clean, functional, and with good explanations! You all rock! Thanks for a great resource!

Engineering Student

For a fraction of the price and only a few flexible hours of your time

Our online plans come with a full 30-day money back guarantee.

Bundled Online Course Options

Save Over $100 with our Bundled Programs

Drawing Basics Bundle


Save $100 by Bundling in 2 Courses

  • Contains Print Reading and Tolerances Course and GD&T Fundamentals Course
  • 365-Day Access
  • 20+ Drawing Reading Lessons
  • 35+ GD&T Lessons
  • All 14 GD&T Symbols in Detail
  • Two Completion Certificates

GD&T Professional Bundle


38% off regular price of $799

  • Contains Both GD&T Courses: GD&T Fundamentals and GD&T Advanced
  • 365-Day Access
  • Forums, Quizzes & Handouts
  • Full Instructor Email Support
  • ASME GD&T Certification Guide
  • Two Completion Certificates

Engineering Expert Bundle


Save $200 by Bundling in All 3 Courses

  • Contains Print Reading and Tolerances Course and Both GD&T Professional Courses
  • 365-Day Access
  • 20+ Drawing Reading Lessons
  • 65+ GD&T Lessons
  • ASME GD&T Certification Guide
  • Three Completion Certificates

Individual Online Course Options

For a fraction of the price and only a few flexible hours of your time.

Print Reading and Tolerances


25% off regular price of $199

  • Special Offer - For Limited Time Only
  • 25+ Lessons
  • No Drawing Experience Necessary
  • Real Engineer Drawing Exercises
  • Full Instructor Email Support
  • Student Q&A Forum
  • 100% Completion Certificate

GD&T Fundamentals Course


25% off regular price of $399

  • 180-Day Access
  • 35+ GD&T Lessons
  • All 14 GD&T Symbols in Detail
  • Forums, Quizzes & Handouts
  • Full Instructor Email Support
  • Student Q&A Forum
  • 100% Completion Certificate

GD&T Advanced Course


25% off regular price of $499

  • Prerequisite: GD&T Fundamentals
  • 180-Day Access
  • 30+ GD&T Advanced Lessons
  • Advanced GD&T Application Concepts
  • Boundary Tolerance Calculations
  • ASME GD&T Certification Guide
  • 100% Completion Certificate

Training For Teams

Companies, Schools, and Groups

Get flexible and customized training for your team.

We have special group discounts designed to ensure your whole team is fully knowledgeable. Simply send us a message and we will contact you with a custom proposal for your company, school or group!

What Is GD&T and Why Is It Important?

Designers, engineers, machinists, inventors and CNC operators all need a grasp of GD&T knowledge to communicate clearly with each other.

  • What Is GD&T?

    Geometric Dimensioning and Tolerancing (GD&T) is the overarching language used in design, manufacturing and quality inspection to communicate on engineering prints. GD&T combines a set of symbols, rules and principles to ensure that everyone is on the same page regarding how a feature or part is defined. When a design engineer hands off a drawing to a machinist, they need a common technical language for communicating exactly what must be done. GD&T is a system to regulate and determine that communication.

  • Why Is GD&T Important?

    GD&T is very important to the engineering world. It is critical for anyone seeking employment in the mechanical field to understand it. Whether you are an automotive engineer or a CNC machinist, knowing the basics of GD&T is paramount to having success in your industry.

    Designers, engineers, machinists, inventors, and CNC operators all need a grasp of GD&T knowledge to communicate clearly with each other.

  • What topics do you cover in the course?

    To learn more about our training modules and what is included in the course you can visit the course specific pages below:

  • How does the course work?

    For Online, Self Paced Training:
    Available for yourself or your team. GD&T Basics is a video-on-demand streaming course, that is available 24/7 on any device – even your smartphone. You will have access to video content as well as review handouts and quiz questions to reinforce the material. For the course features and information on how the interactive modules work, you can visit our Online Course Overview Page.

    Virtual Live Training:
    Available for companies/groups. Your team schedules training for your whole group, hosted live with one of our senior-level GD&T Certified professionals for a live training from the comfort of your own office or home via your computer or device of your choice. To learn more about this group training options, visit our Virtual Live Training Page.

    On-Site Training:
    Available for companies/groups - we come to you. Your team schedules training for your whole group with one of our senior-level GD&T Certified professionals in-person at your facility. To learn more about this group training options, visit our On-Site Training Page.

    Public Training:
    Available for yourself or your team. We have scheduled public training events for our GD&T Fundamentals and Advanced GD&T Courses throughout the year. Visit our Public Training Page to view the dates and training options coming soon.

  • Do you offer group rates?

    Absolutely! We have group discounts starting at only 2 students to help your entire team get on the same page with GD&T. To request information about our training and receive our current group discount rates, please visit our Group/Teams Page.

    We also have a revolutionary Academic Partnership Program for bringing GD&T education to your school at a fraction of the cost of a typical textbook for more information, please see our Academic Partner Contact Page

  • Do you offer a Certificate of Completion?

    We offer a certification once 100% of the course is completed from our company, Engineer Essentials LLC. We will also help with any verification of this certification if a company would like to contact us and you are welcome to add your certificate credentials on your LinkedIn page. Make sure that you add GD&T as a new skill on LinkedIn as well, then connect with our team and request that we endorse your GD&T skill!

  • How much does the training cost?

    Our current pricing and offers for our Online and Public courses are found on our Course Pricing Page. For group discounts, you can visit either our Group/Team Page for company quotations, or our Academic Partnership Contact Page for information about our academic program discounts.

  • What support options are available?

    We offer direct student support through our email hotline allowing our instructors to reply to your questions within a day or two if you get stuck.

    We always want to hear from our students and truly enjoy helping them conceptualize using Geometric Dimensioning and Tolerancing in their work. GD&T is a powerful concept that is critical for communicating design intent between design, production, and inspection. Our #1 goal is to make you confident when working with these concepts in an engineering setting and to make sure you leave our program with a solid skillset in GD&T.

    For pricing and differences between our training courses – please visit our Course & Pricing Page.