North seeking gyro with solid state sensors for all downhole applications. The only gyro in the mining industry that is capable of continuous surveying of azimuth from absolute vertical and up.

Secure the most demanding projects with an outstanding accuracy of 3 sigma.

North seeking solid-state gyroscope

The GyroMaster™ uses our proprietary Navibore™ Technology, which is capable of registering data points every cm for industry-leading accuracy. Capable of surveying at any inclination, customers can automatically receive two highly accurate independent surveys from every run.

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Automated software shows real-time data

Our intuitive software ensures accuracy throughout the operation. The GyroMaster™ obtains data in real-time and automatically generates detailed reports that can easily be shared with all stakeholders.

Pull cores and complete survey at the same time

Improve your team ́s efficiency by doing two tasks at once. With our Core Retriever™ overshot assembly you can pull cores and survey simultaneously. Increase drilling productivity and deliver great results combined with our  GyroMaster™.

  1. 1
    Diameter42mm (1.65")
    Weight8kg (17.6 lbs)
    Battery life20 hours between re-charges
    Length (with battery)1844mm (72.6")
    Length (with telemetry)1463mm (57.6")
  2. 2
    Inclination± 0.05°
    Azimuth accuracy± 0.5° - Quoted at 3 sigma (99.7% assurance)
    Positional accuracy<0.1% (NS, EW, Alt)
  3. 3
    Operating rangeVertical, horizontal and inclined
    Survey modeContinuous, multi-shot and single shot
    Operating modeBattery/Offline, Telemetry/Real-time
  4. 4
    Export formatPDF, Excel, CSV, LAS, DXF
    Survey reportGenerate at any interval
    Graphic generation2D, 3D
  5. 5
    Pressure, Temp and Shock Rating
    Pressure, Temp and Shock Rating 
    Pressure rating50 MPa (7250 psi)
    Temperature range-30°C up to 60°C (-22°F up to 140°F)
    Shock range2000g Axial, ½ sine, 2ms

Automated quality control ensures your projects success

Our products are developed in-house, which means we oversee every aspect of production. We don’t outsource and hope for success, we build internally and expect it. With Stockholm Precision Tools you can trust that every product we develop is of the highest quality thanks to our experienced engineers.


Core Retriever™

Pull cores and complete surveys at the same time.

Optical Depth Counter

Ensure survey accuracy with precision depth control.

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Learn more about the GyroMaster™ straight from the experts.