Diemaking Level III Passing Score 2026: Exactly What You Need to Pass

The Short Answer on the Passing Score

Candidates searching for the Diemaking Level III passing score usually want a single number: a percentage, a scaled score, or a count of questions to answer correctly. That number is exactly what the public record does not supply. The National Institute for Metalworking Skills (NIMS), which governs and issues the credential, does not publish a verifiable written-exam cut score for the Diemaking Level III exam in any source we could review as of October 2026.

That is a frustrating answer, but it is the honest one. Many exam-prep pages invent a tidy figure such as "70%" or "75%" to satisfy the search query. Without a source from the issuer, those numbers are guesses at best and borrowed from unrelated credentials at worst. This article separates what is documented from what is not, so you can plan your preparation around real requirements instead of a made-up threshold.

Two Gates: Skill Checks and the Written Exam

Diemaking Level III is not a single sitting at a testing center. Under the NIMS Diemaking Credentialing Program, the Level III Credentialing Achievement Record (CAR) describes a structure with two distinct hurdles, and "passing" means something different at each one.

Gate one: documented competency and practical skill checks

The CAR requires documented workplace competency, practical skill checks scored against Official Performance Assessment Checklists, attestations from both a supervisor or evaluator and the candidate, and an affidavit of successful performance. These elements establish eligibility for the Level III written examination. In other words, the performance evidence comes first, and it unlocks the theory test.

Gate two: the online theory examination

The NIMS List of Credentials (version 2.1, December 2020) describes the credential as combining performance assessment at a training site with online theory testing. The written component is the part that would carry a conventional cut score, and that is the part whose passing score remains unconfirmed.

What Is Confirmed and What Is Not

Because this credential rests on a legacy standard, it pays to be precise about the evidence behind each claim. The scope of Diemaking Level III comes from the NIMS document Duties and Standards for Diemaking Skills, Level III (copyright September 2000). That is a standards document describing occupational competencies. It is not a current exam blueprint, and it does not state a passing score.

One more caution: a resource-listing date of January 19, 2018 appears in the source review. That is not an exam-version date, and it could not be revalidated from a current listing. Do not read it as proof that a particular exam revision is live in 2026.

Why the 100% Standard Matters

The only hard "pass" threshold documented for this credential is the practical one. The CAR states that skill checks must meet 100% of applicable process and product standards, performed without assistance, and within company-specific completion times and safety requirements. For a diemaker, this is intuitive: a die that is 90% correct does not run. A misaligned guide, an unadjusted shut height, or a skipped safety step can ruin tooling or injure someone.

It is critical not to confuse this with a written-exam cut score. The 100% figure describes how the evaluator scores your demonstrated work at the bench. It is not a statement that you must answer every theory question correctly, and it is not a candidate pass rate. If you want to understand how often candidates succeed overall, our analysis of the Diemaking Level III pass rate explains why no reliable public figure exists.

Note also that the checklists reference calculator and Machinery's Handbook use within performance standards. That does not establish what you may bring into the written exam, so do not assume reference materials are permitted at the proctored theory test. Confirm the rules with your registered NIMS organization before test day.

The 14-Area Standards Framework

The Level III standard is organized into five duty areas plus nine supporting knowledge, skills, abilities and other characteristics (KSAO) areas, for 14 headings in total. These are unweighted. That means the standards give you no percentage breakdown of how much each area counts, and the count of 14 should not be read as an official 14-domain written exam with equal weights. It is a preparation framework, not a verified current exam blueprint. For a deeper walkthrough, see our complete guide to all 14 content areas.

The five duty areas

• Job Planning
• Die Assembly
• Adjustments
• Final Tryout
• Final Runoff

These map directly to the work of advanced, complex dies: leading a team, assembling, tuning, trying out and running off. They are the natural home of the practical skill checks.

The nine supporting KSAO areas

• Written and Oral Communications
• Decision Making and Problem Solving
• Social Skills and Personal Qualities
• Engineering Drawings and Sketches
• Measurement
• Metalworking Theory
• Metalforming Theory
• Sensors
• Safety and Environment

The theory-heavy areas (Metalworking Theory, Metalforming Theory, Measurement, Sensors, and Engineering Drawings and Sketches) are the likeliest candidates for the knowledge portion of a written test, but this is an inference from the framework, not a published blueprint. Because the standard assumes Level II diemaking and substantial Level III machining skills, expect the questions and tasks to presume solid fundamentals.

Attempts, Lockouts and Proctoring

NIMS general policy sets the ground rules for how you actually sit the theory test, and these affect how you should think about "passing."

• Registration: A registered NIMS organization registers candidates. You do not simply walk up and buy a seat as an individual.
• Proctoring: Online theory examinations require a proctor.
• Attempts: The general policy permits two attempts before a 30-day lockout.
• Access: The general policy specifies no minimum age, degree or work-experience hours.
• Curriculum: NIMS does not prescribe a credentialing curriculum.

These are general NIMS statements. They do not by themselves establish the current logistics of this specific legacy exam, and they do not erase the documented practical requirements in the CAR. NIMS is also not a membership organization, so there is no member versus non-member pricing to compare. For the cost picture, see our pricing breakdown, which flags what is and is not confirmed.

Sequencing Your Preparation by Domain

Since no cut score is published, aim for mastery across the framework instead of a target percentage. One sensible ordering follows the way the work flows and puts the pass/fail practical demands first.

The logic: the duty areas are evaluated by demonstration, so they deserve early hands-on repetition, while the theory and supporting areas feed the written test and benefit from review closer to your exam window. For a fuller plan, use our Diemaking Level III study guide, and for a quick refresher near test day, the one-page cheat sheet. You can also build recall with timed questions on the main practice test site.

How to Verify the Current Cut Score

Because the written-exam details are on hold, the reliable path is to ask the party that administers the test. Do the following before you commit time and money:

1. Contact a registered NIMS organization (a training provider, employer program or school that administers NIMS credentials) and ask whether Diemaking Level III is currently available.
2. Ask for the exact exam identifier and revision so you know which version you would sit.
3. Request the written-exam format: question count, time allowed, scoring method and passing score.
4. Confirm eligibility handling: how the CAR's skill checks, attestations and affidavit are applied to your situation.
5. Get fees and retake terms in writing, including how the two-attempt policy and 30-day lockout apply.

Exam timing is a related question; our page on exam dates and scheduling explains what can and cannot be stated about availability. If you are weighing whether the effort is justified, the ROI analysis and difficulty guide help frame the decision.

Frequently Asked Questions