- Tolerance Stack Up Analysis Training
- Geometric Dimensioning & Tolerancing (GD&T) Training
- Design for Manufacturing / Design for Assembly Training

- Design for Lean Six Sigma Training, Coaching, and Facilitation

- 8D Root Cause Analysis & Problem Solving, Measurement & Gaging​ Training

​- AS13100, AS/RM 1300013002, 13003, 13004, 13006, 13010, 13145 Training

- AIAG and VDA Core Tools Training including APQP, FMEA, PPAP, SPC, MSA



(915) 867-4500


​​Sanctioned Training Provider


"Helping you ask the right questions."™

Click to view Certificate Holders

Certified Six Sigma Master Black Belt

All ITR Instructors hold the

Senior GD&T Professional Certification

ASME Y14.5.2

John-Paul Belanger

Years of experience: 25+

Expertise: GD&T Fundamentals and Applications, Tolerance Stack Analysis, Failure Mode and Effects Analysis

ASME Senior GD&T Certified

Dan Bauer

Years of experience: 25+

Expertise: GD&T Applications, Tolerance Stack Analysis, Design for Manufacturing and Assembly, Design for Lean Six Sigma

ASME Senior GD&T Certified

Six Sigma Master Black Belt Certified

John Stolter

Years of experience: 25+

Expertise: GD&T, Tolerance Analysis, Sheet Metal Forming and Die Design, Analytical Tools

ASME Senior GD&T Certified

Design for Lean Six Sigma

We have workshops that will help you combine your GD&T and tolerance stack methods with statistical and lean tools to help optimize design, manufacturing, quality, and productivity.  

GD&T Application and Tolerance Analysis

We can lay the foundation, and then take you to the next level with advance workshops focusing on inspection, applications to new designs, and advanced tolerance analysis.

ASME Certification

All our instructors hold the Senior Level GD&T Certification to ASME Y14.5.2, and have helped dozens of students obtain certification.

Bauer pic

Hands-On Expertise

We have a combined 75+ years of experience of teaching GD&T and related tools to thousands of students worldwide, and applying GD&T to thousands of drawings.

Our Staff

Our Strengths