---
title: "Get the latest calibration template version for a tool — the checkpoints, tolerances,
trial counts, environment ranges, and master gauges an in-house calibration is measured against."
method: GET
path: "/api/tools/{toolId}/calibration-template/latest"
tags: ["Tool"]
---

# Get the latest calibration template version for a tool — the checkpoints, tolerances,
trial counts, environment ranges, and master gauges an in-house calibration is measured against.

`GET /api/tools/{toolId}/calibration-template/latest`

## Path parameters

- `toolId` string, required

## Response `200`

The tool's latest calibration template version

- ToolCalibrationTemplateDto — A calibration template version for a tool, with the measurement checkpoints an in-house calibration is measured against.
  - `id` string, uuid — The id of the template version
  - `toolId` string, nullable — The id of the tool this template belongs to
  - `version` integer — The template version number; calibration records pin the version they were measured against
  - `createdUtc` string, date-time — When this version was created (UTC)
  - `source` 'user' | 'vendor' | 'customer' — Who performed the calibration. Mirrors FulcrumProduct.Domain.ToolCalibrations.CalibrationSource by underlying value.
  - `procedureName` string, nullable — The name of the calibration procedure
  - `defaultMasterGage` ToolMasterGageReferenceDto — A master gauge (itself a tool) referenced by a calibration template or checkpoint.
    - `id` string, nullable — The id of the master gauge tool
    - `name` string, nullable — The name of the master gauge tool
    - `toolType` 'bevelProtractor' | 'bendAngleGage' | 'boreGage' | 'caliper' | 'cmm' | 'coatingThicknessGage' | 'depthMicrometer' | 'gageBlocks' | 'hardnessTester' | 'heightGage' | 'micrometer' | 'opticalComparator' | 'pinGage' | 'plugGage' | 'radiusGage' | 'sineBar' | 'surfacePlate' | 'surfaceRoughnessTester' | 'thicknessGage' | 'threadPlugGage' | 'threadRingGage' | 'vmm' | 'attributeGage' | 'calibrationArtifact' | 'indicator' | 'calibrationStandard' | 'chamferGage' | 'lightMeter' | 'presetter' | 'digitalConductivityMeter' | 'ringGage' | 'profilometer' | 'splineGage' | 'tapeMeasure' | 'thermometer' | 'stopwatch' | 'torqueWrench' | 'instantMeasurementSystem' | 'protractor' | 'pressureGage' | 'tubeGage' | 'tubeMicrometer' | 'thermocouple' | 'ohmMeter' | 'multimeter' | 'weight' | 'fixture' | 'machine' | 'hygrothermometer' | 'concentricityGage' | 'cmmDatumSphere' | 'threadMicrometer' | 'insideMicrometer' | 'pinMicrometer' | 'setPlug' | 'nptRingGage' | 'nptPlugGage' | 'grooveMicrometer' | 'weldingEquipment' | 'surfaceTesterMaster' — The type of tool in the calibration system. Member values mirror FulcrumProduct.Domain.ToolCalibrations.Data.ToolType one-to-one (guarded by ToolCalibrationEnumParityTests) so tools map by underlying value.
    - `serialNumber` string, nullable — The serial number of the master gauge tool
    - `nextCalibrationDateUtc` string, date-time, nullable — When the master gauge's own calibration expires (UTC); null when it has never been calibrated
    - `calibrationFrequency` 'recurringDays' | 'recurringMonths' | 'endOfMonth' | 'endOfQuarter' | 'endOfYear' | 'none' — How often the tool requires calibration. Mirrors FulcrumProduct.Domain.Tools.Data.CalibrationFrequency by underlying value.
  - `defaultMasterGageId` string, nullable — The raw default-master id. Set while defaultMasterGage is null means the configured master no longer resolves ("master unavailable"), never "no master configured"
  - `lowerTolerance` number, double, nullable — The default lower tolerance applied to checkpoints
  - `lowerTolPrecision` integer, nullable — The decimal precision of the lower tolerance
  - `upperTolerance` number, double, nullable — The default upper tolerance applied to checkpoints
  - `upperTolPrecision` integer, nullable — The decimal precision of the upper tolerance
  - `trialsPerCheckpoint` integer, nullable — How many trials each checkpoint requires per phase
  - `minTempDegC` number, double, nullable — The minimum acceptable ambient temperature (deg C) during calibration
  - `maxTempDegC` number, double, nullable — The maximum acceptable ambient temperature (deg C) during calibration
  - `maxRelHumidity` number, double, nullable — The maximum acceptable ambient relative humidity (%) during calibration
  - `instructions` string, nullable — Free-text calibration instructions
  - `checkpoints` ToolCalibrationCheckpointDto[] — The measurement checkpoints, in display order
    - `id` string, uuid — The id of the checkpoint; measurement responses reference it
    - `order` integer — Relative position of the checkpoint within the template
    - `attribute` string, nullable — The characteristic being measured (e.g. "Diameter")
    - `nominal` number, double, nullable — The target/nominal value for the measurement
    - `minimumValue` number, double, nullable — The minimum acceptable measured value (inclusive)
    - `maximumValue` number, double, nullable — The maximum acceptable measured value (inclusive)
    - `precision` number, double, nullable — The decimal precision applied to the nominal value
    - `units` string, nullable — The unit of measure of the measurement
    - `masterGage` ToolMasterGageReferenceDto — A master gauge (itself a tool) referenced by a calibration template or checkpoint.
      - `id` string, nullable — The id of the master gauge tool
      - `name` string, nullable — The name of the master gauge tool
      - `toolType` 'bevelProtractor' | 'bendAngleGage' | 'boreGage' | 'caliper' | 'cmm' | 'coatingThicknessGage' | 'depthMicrometer' | 'gageBlocks' | 'hardnessTester' | 'heightGage' | 'micrometer' | 'opticalComparator' | 'pinGage' | 'plugGage' | 'radiusGage' | 'sineBar' | 'surfacePlate' | 'surfaceRoughnessTester' | 'thicknessGage' | 'threadPlugGage' | 'threadRingGage' | 'vmm' | 'attributeGage' | 'calibrationArtifact' | 'indicator' | 'calibrationStandard' | 'chamferGage' | 'lightMeter' | 'presetter' | 'digitalConductivityMeter' | 'ringGage' | 'profilometer' | 'splineGage' | 'tapeMeasure' | 'thermometer' | 'stopwatch' | 'torqueWrench' | 'instantMeasurementSystem' | 'protractor' | 'pressureGage' | 'tubeGage' | 'tubeMicrometer' | 'thermocouple' | 'ohmMeter' | 'multimeter' | 'weight' | 'fixture' | 'machine' | 'hygrothermometer' | 'concentricityGage' | 'cmmDatumSphere' | 'threadMicrometer' | 'insideMicrometer' | 'pinMicrometer' | 'setPlug' | 'nptRingGage' | 'nptPlugGage' | 'grooveMicrometer' | 'weldingEquipment' | 'surfaceTesterMaster' — The type of tool in the calibration system. Member values mirror FulcrumProduct.Domain.ToolCalibrations.Data.ToolType one-to-one (guarded by ToolCalibrationEnumParityTests) so tools map by underlying value.
      - `serialNumber` string, nullable — The serial number of the master gauge tool
      - `nextCalibrationDateUtc` string, date-time, nullable — When the master gauge's own calibration expires (UTC); null when it has never been calibrated
      - `calibrationFrequency` 'recurringDays' | 'recurringMonths' | 'endOfMonth' | 'endOfQuarter' | 'endOfYear' | 'none' — How often the tool requires calibration. Mirrors FulcrumProduct.Domain.Tools.Data.CalibrationFrequency by underlying value.
    - `masterGageId` string, nullable — The checkpoint's raw master gauge id. Set while masterGage is null means the configured master no longer resolves ("master unavailable"), never "no master configured"

## Other responses

- `404` — Tool did not exist, or the tool has no calibration template

---

[API](https://skmtc.net/fulcrumpro/apis/fulcrum-publicapi.md) · [All operations](https://skmtc.net/fulcrumpro/apis/fulcrum-publicapi/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/fulcrumpro/fulcrum-publicapi/versions/1b5649cff14a/schema)