Free torque wrench calibration log
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A torque wrench calibration log is a record used to document the calibration of torque wrenches against traceable reference standards. It captures instrument details, test point readings at 25%, 50% and 75% of full scale, as-found and as-left readings, pass/fail status and the full calibration history over the tool's service life.
Last updated: 2026-02-21 · MapTrack
Commercial Director
How to use: Fill in instrument details → record reference standard → enter as-found readings → adjust if needed → record as-left readings → note pass/fail → sign off → save as PDF.
- ✓PDF-ready. Open and print to PDF
- ✓Test points at 25%, 50% and 75% of full scale
- ✓Calibration history register (8 events) on page 2
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See the calibration log below. Enter your email above to download the full torque wrench calibration log (PDF-ready, 2 pages).
What is a torque wrench calibration log?
A torque wrench calibration log is a formal record that documents the calibration of a torque wrench against a traceable reference standard. Calibration verifies that the wrench applies the intended torque value accurately within an acceptable tolerance. The log captures the instrument details, the calibration event data (reference standard, test points, readings, deviations, adjustments), the outcome (Pass/Fail), and the next calibration due date.
In Australia, torque wrench calibration is governed by AS ISO 6789 (Assembly tools for screws and nuts - hand torque tools). Calibration records are required for quality management systems (ISO 9001), safety management systems and wherever torque is a safety-critical parameter, such as structural connections, pressure system fasteners, vehicle wheel nuts and lifting equipment.
Benefits of keeping a torque wrench calibration log
- Safety assurance: confirms that safety-critical fasteners (wheel nuts, structural bolts, pressure systems) are tightened to the correct torque, reducing risk of failure.
- ISO 9001 compliance: quality management systems require monitoring and measuring equipment to be calibrated and records maintained.
- Traceability: links each calibration event to a traceable reference standard, supporting audit and regulatory requirements.
- Detect out-of-tolerance tools: as-found readings reveal whether the wrench was in tolerance before adjustment, providing an early warning of drift.
- Maintenance planning: calibration history shows whether calibration intervals are appropriate and whether repeated adjustment suggests a worn or damaged tool.
- Legal and insurance protection: documented calibration records demonstrate due diligence if fastener failures are investigated.
Benefits of digitising forms in MapTrack
When you move from paper or static PDFs to digital forms in MapTrack, you get:
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Book a demo to see calibration records and asset management in MapTrack.
What to include in a torque wrench calibration log
Our free torque wrench calibration log covers:
- Instrument details: make/model, serial number, drive size, torque range, asset/ID number, and next calibration due date.
- Calibration event details: date calibrated, calibrated by, calibration location and environmental conditions (temperature, humidity where required).
- Reference standard: make/model, serial number and certificate number of the reference torque tester used, confirming traceability.
- Test points: 25%, 50% and 75% of full scale, tested in at least three directions as required by AS ISO 6789.
- As-found readings: actual torque applied at each test point before any adjustment, with deviation and pass/fail.
- As-left readings: readings after adjustment, confirming the wrench is within tolerance before being returned to service.
- Adjustment notes: details of any adjustments made during calibration.
- Overall result: Pass or Fail for the calibration event.
- Calibration history register: 8-row table on page 2 capturing date, calibrated by, next due, result and certificate number for each calibration event over the life of the instrument.
- Technician sign-off: declaration and signature.
How to use a torque wrench calibration log
- Record the instrument details at the top of page 1: make/model, serial number, drive size, torque range and asset/ID number.
- Record the reference standard details (make/model, serial number, certificate number) to establish traceability.
- Allow the torque wrench to stabilise at room temperature before testing. Apply the wrench five times at the set torque to condition it before recording readings.
- Set the wrench to 25% of its full scale. Apply torque to the reference tester. Record the actual displayed torque as the as-found reading. Calculate deviation (%). Mark Pass or Fail based on your acceptance criteria (typically ±4% per AS ISO 6789).
- Repeat at 50% and 75% of full scale, recording as-found readings and pass/fail for each.
- If any test point fails, adjust the wrench and record the as-left readings at each test point. Note the adjustment made.
- Record the overall result (Pass/Fail), set the next calibration due date, and sign off.
- Transfer a summary entry to the calibration history log on page 2.
In MapTrack, calibration records can be linked to each tool in your asset register with automated reminders before the next calibration is due. Book a demo to see how.
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Back to download formHow often should torque wrenches be calibrated?
AS ISO 6789 recommends torque wrenches be calibrated at least once per year or every 5,000 uses, whichever occurs first. For tools used in safety-critical applications - structural bolting, wheel fasteners, pressure equipment - annual or more frequent calibration is standard practice. Many quality management systems specify calibration intervals in their calibration schedules based on risk level and usage frequency.
Torque wrenches should also be calibrated immediately after any significant shock, drop or overload event, after extended storage, and before use on any safety-critical application. A calibration label or tag attached to the wrench should clearly display the calibration due date, enabling operators to identify out-of-date tools before use.
Frequently asked questions
- What should a torque wrench calibration log include?
- A torque wrench calibration log should record: instrument identification (make, model, serial number, drive size, torque range, asset number), calibration date, technician name, reference standard used (make/model/serial/certificate number), test points tested (typically 25%, 50% and 75% of full scale), as-found readings at each test point, as-left readings after adjustment, deviation from set value, pass/fail status for each test point, overall result, and next calibration due date. A separate history log allows multiple calibration events to be tracked over the instrument's service life.
- How often should torque wrenches be calibrated?
- AS ISO 6789 recommends calibration at least annually or every 5,000 uses, whichever comes first. In practice, most maintenance and safety-critical applications require annual calibration at minimum. Torque wrenches should also be calibrated after any significant impact, drop, overload or suspected damage, and when the tool has been out of service for an extended period. High-usage environments (production, assembly lines, heavy industry) may require more frequent calibration intervals.
- What is the acceptable accuracy tolerance for a torque wrench?
- AS ISO 6789-1 specifies that type I torque wrenches (indicating) must be accurate to within ±4% of reading, and type II (setting) wrenches must be accurate to within ±4% of reading in the clockwise (tightening) direction. Some quality management systems and safety-critical applications set tighter tolerances. The acceptable tolerance for your application should be defined in your calibration procedure or quality management system.
- Who can calibrate a torque wrench in Australia?
- Torque wrenches can be calibrated in-house if your organisation has appropriate calibrated reference equipment and a documented calibration procedure. For traceable calibration to national standards, calibration should be performed by an NATA-accredited laboratory or a technician using equipment with a current NATA-traceable certificate. For safety-critical applications (pressure systems, structural connections, aerospace), NATA-accredited calibration is strongly recommended.
- Is this torque wrench calibration log free to use?
- Yes. Download and use the torque wrench calibration log for free. Open the file in your browser and use Print → Save as PDF. No MapTrack account is required. If you want to manage calibration due dates digitally, with automated reminders and calibration certificates linked to each tool in your asset register, MapTrack can do that. Book a demo to see how.
Need calibration records linked to each tool in your asset register?
Track calibration due dates in MapTrack. Automated reminders before calibration is due, calibration certificates attached to each tool, and full history accessible from any device.