Dimensional Calibration Review bore gauge calibration setup, reference selection, indication error, repeatability, range coverage, uncertainty, and certificate evidence. Contents Bore Gauge Calibration: Procedure, Transmission Error, Measurement Uncertainty, CMC & NABL Scope Table of Contents 1. What Is Bore Gauge Calibration? 2. Calibration vs Setting vs Adjustment vs Verification 3. Resolution Is Not Accuracy 4. Bore Gauge Types and Calibration Considerations 5. Bore Gauge Calibration Procedure 6. Reference Standards and Setting Systems 7. What Is Bore Gauge Transmission Error? 8. Repeatability and Direction Effects 9. Measurement Uncertainty 10. CMC: Calibration and Measurement Capability Bore Gauge Calibration: Procedure, Transmission Error, Measurement Uncertainty, CMC & NABL Scope Updated: 20 August 2026 A bore gauge can be correctly zeroed and still require calibration evidence before its measurement results can be relied upon for a particular applicati...