Fixture, Gauge & Workholding Management calculator
Gauge Repeatability Score Calculator
Rank risk from poor gauge repeatability, operator variation, part location variation, or inspection fixture instability. Use it before commissioning a new gauge, reacting to gauge R&R concerns, or deciding which inspection fixtures need containment or redesign.
What this calculator does
- Rank risk from poor gauge repeatability, operator variation, part location variation, or inspection fixture instability.
- Use it before commissioning a new gauge, reacting to gauge R&R concerns, or deciding which inspection fixtures need containment or redesign.
- Ranks repeatability risk for gauges, inspection fixtures, locator nests, CMM fixtures, and attribute checks.
Formula used
- Gauge Repeatability Score score = repeatability impact score × repeatability occurrence score × detection-control weakness score
- Use the same scoring scale across comparable fixture, gauge, workholding, and inspection risks.
Inputs explained
- Repeatability impact score: Score severity based on tolerance risk, customer impact, sorting risk, or chance of accepting nonconforming parts.
- Repeatability occurrence score: Score occurrence using gauge R&R history, operator variation, fixture wear, part-location instability, or inspection disputes.
- Detection-control weakness score: Score detection weakness based on how likely calibration, master checks, audits, or redundant measurements are to catch the issue.
How to use the result
- Use it to prioritize gauge R&R work, fixture stabilization, operator training, master part checks, or gauge redesign.
- Risk scores are comparative, not absolute. Use the same scale across items and supplement the score with gauge R&R data, calibration history, production downtime, and containment cost.
Common questions
- What information do I need before using the Gauge Repeatability Score? Use severity, occurrence, and detection scores from the same FMEA, gauge R&R review, metrology escalation, or inspection risk scale.
- What does the result mean? It produces a single ranking score so gauge or workholding risks can be prioritized for action.
- When is the result only an estimate? It is an estimate when part mix, datum scheme, tolerance stack, clamp layout, operator method, inspection plan, gauge condition, calibration status, maintenance history, machine uptime, or production volume differs from the assumptions entered.
- What decision can I make from the result? Use the score to decide which gauges need repeatability studies, repair, recertification, containment, or replacement first.
Last reviewed 2026-05-12.