Your Trusted Micrometer Calibration Provider
Micro Precision is an ISO/IEC 17025:2017 accredited calibration provider operating a global network of more than 50 labs. Our micrometer calibration services deliver NIST-traceable measurement results backed by documented accreditation, serving aerospace, defense, medical device, and manufacturing quality programs with in-lab and on-site service options.
Our micrometer calibration services are performed under ISO/IEC 17025:2017 accreditation with NIST-traceable measurement references. Every calibration produces a certificate of calibration documenting as-found and as-left conditions, providing the audit-ready documentation required for ISO 9001, AS9100, FDA 21 CFR Part 820, and other quality management systems.
Our accredited labs calibrate a variety of micrometer types, from outside and inside micrometers to depth and digital models. Industries served include aerospace and defense, medical device manufacturing, automotive production, industrial manufacturing, pharmaceutical, and research and testing laboratories. Our mechanical and dimensional calibration capabilities extend across the full dimensional measurement spectrum, supporting quality programs from incoming inspection through final acceptance testing.
Why Micrometer Calibration Matters
Uncalibrated micrometers introduce measurement error that can pass defective parts through inspection, compromising product quality, dimensional accuracy, and regulatory documentation. ANSI/NCSL Z540.3 and ISO 10012 require that dimensional measurement instruments used in quality-critical processes be calibrated at defined intervals against traceable standards. Calibration is not optional for operations subject to AS9100, ISO 9001, or FDA quality system requirements.
For quality managers and QA directors, uncalibrated micrometers create audit findings and compliance gaps that can delay certification or trigger corrective action requests. For lab technicians and metrologists, measurement drift over time invalidates dimensional inspection data unless calibration history is documented and traceable to national measurement standards.
For procurement and compliance teams, selecting an accredited micrometer calibration provider ensures that certificates of calibration meet the documentation requirements of third-party auditors, government regulators, and prime contractors across defense, aerospace, and medical device supply chains.
Ensure Accurate Micrometer Calibration
Accurate micrometer calibration requires a documented, repeatable process tied to traceable measurement standards. Micro Precision receives each instrument, inspects it for physical condition, applies known length references across the calibration range, adjusts output where necessary, and issues a certificate of calibration documenting as-found and as-left measurement data.
Our calibration process follows these steps for every instrument:
- Receive and inspect: the instrument is logged, inspected for physical damage, and prepared for testing
- As-found measurement: the micrometer is tested at defined points across its measuring range using NIST-traceable reference standards, and pre-adjustment readings are recorded
- Adjustment: where readings fall outside acceptable tolerance, the instrument is adjusted to bring output into specification
- As-left measurement: post-adjustment readings are recorded to document final calibrated performance
- Documentation: a certificate of calibration is issued with full measurement data, reference standard traceability, and calibration date
- Return: the calibrated instrument is returned with its certificate of calibration
Standard and rush turnaround options are available. Contact our team when requesting a quote to discuss lead times for your specific micrometer type and service level.
Our Calibration Options
Micro Precision offers two micrometer calibration delivery modes: in-lab calibration at one of our accredited facilities, and on-site calibration performed at your location by accredited technicians. Both options produce a NIST-traceable certificate of calibration. Rush service is available for time-sensitive calibration requirements.
In-Lab Calibration
Ship your micrometers to the nearest Micro Precision accredited calibration facility for service under controlled laboratory conditions. In-lab calibration is suited for outside, inside, depth, and digital micrometers that can be safely transported without risk of damage or misalignment. Our lab network spans more than 50 locations, keeping transit times and turnaround short.
On-Site Calibration
Micro Precision technicians travel to your facility to calibrate micrometers in place. On-site service is the preferred option for production environments with high-volume dimensional inspection needs, where removing instruments from service creates workflow disruption. Learn more about our on-site calibration services and how to schedule a visit.
Rush Calibration
Rush turnaround is available for production-critical instruments. Request a rush option when submitting your calibration quote to confirm current availability and lead time.
Micrometer Types We Calibrate
Micro Precision calibrates a variety of micrometer types and dimensional measurement instruments across a wide range of capacities. Our accredited instrument calibration services cover the following micrometer types:
- Outside micrometers
- Inside micrometers
- Depth micrometers
- Digital micrometers
- Bore micrometers
- Groove micrometers
- Thread pitch micrometers
- Vee-anvil micrometers
For length-standard verification, Micro Precision also offers gage block calibration and stage micrometer calibration. We service instruments from a variety of manufacturers, including Mitutoyo, Starrett, and Brown & Sharpe. Instruments manufactured by Mitutoyo can also be serviced through our dedicated Mitutoyo calibration services program. If your instrument model or manufacturer is not listed, contact us to confirm service availability for your specific equipment.
Service Levels Offered
Micro Precision offers three micrometer calibration service levels to match your compliance requirements and documentation needs. Select the tier that aligns with your quality management system obligations and audit requirements.
| Type of Service | Traceable | Traceable with Data | Accredited (ISO:IEC 17025:2017, Z540.3) |
|---|---|---|---|
| Calibrated to manufacturers specifications traceable to SI Units | |||
| ISO 9000 Compliant | |||
| Calibration certificates, data, maintained on secure web based tool (CDM) | |||
| Detailed calibration certificates and calibration stickers | |||
| Instrument adjustment (if found out of tolerance) | |||
| ANSI/NCSL Z540-1 compliant | |||
| Calibration Data | |||
| Logo from Accreditation body, Expanded Measurement Uncertainty | |||
| ANSI/NCSL Z540.3 compliant |
Please complete our quick Micrometer calibration & repair service request form, and a Micro Precision representative will reach out to you same-day during office hours, or within one business day after office hours. (Mon – Friday 8AM – 4PM PST)
Micrometer Services
If you have any inquiries, or simply wish to connect with us, we'd love to hear from you! Please don't hesitate to reach out to us.
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FAQs
Micrometers should be calibrated on a defined interval established by the organization’s quality management system, typically annually for micrometers in regular use, with more frequent intervals for high-precision or high-use applications. ISO 10012 requires organizations to base calibration frequency on usage, environment, and historical stability data rather than a single fixed schedule for every instrument.
Micrometer calibration verifies measurement accuracy by testing the instrument against NIST-traceable reference standards, such as gage blocks, across its full measuring range. Micro Precision’s technicians inspect the micrometer for wear or damage, record as-found readings, adjust the instrument as needed, record as-left readings, and issue a certificate of calibration documenting the results under ISO/IEC 17025:2017 accreditation.
Metrology programs commonly reference a test accuracy ratio (TAR) of 4:1, meaning the reference standard used for calibration is at least four times more accurate than the micrometer being tested. ANSI/NCSL Z540.3 addresses this concept as part of establishing adequate measurement uncertainty. Micro Precision selects reference standards appropriate to each micrometer’s specifications to support this accuracy relationship.
Micrometer calibration cost depends on the micrometer type, the service level selected (Traceable, Traceable with Data, or Fully Accredited), and whether service is performed in-lab or on-site. Organizations should request a calibration quote to receive pricing specific to their micrometer inventory, required documentation, and turnaround needs rather than relying on a general estimate.
Micrometer calibration is important because it confirms that dimensional measurements used for part acceptance, inspection, and quality control remain accurate and traceable to national standards. Uncalibrated micrometers can allow out-of-tolerance parts to pass inspection, creating downstream quality failures, audit findings, and compliance gaps under ISO 9001, AS9100, and other quality management frameworks that reference ISO 10012.
Micrometer calibration references ANSI/NCSL Z540.3 for calibration program requirements, ISO 10012 for measurement management systems, and ISO/IEC 17025:2017 for laboratory competence and accreditation. Calibration results are also traceable to NIST, the national metrology institute that maintains the physical measurement standards underlying every certificate of calibration issued in the United States.