Spline Gauges

Mercury provides a full range of Spline Ring and Plug gauges to meet your quality specifications.

Our gauges are hardened, then each spline gauge is then precision lapped and polished providing superior accuracy, optimum gauge surface finish and longer wear life. Completing the quality assurance process each spline gauge is inspected and certified in an environmentally controlled ISO/IEC 17025 laboratory. This ensures your spline ring and plug gauges will provide you with quality, accuracy, stability, durability and reliability.

Spline gauges are designed according to the tolerances 'actual' and 'effective'. From design to final inspection our design and manufacturing team will work with your team to meet and exceed your expectations.

Go and NOGO spline gauges are available in various types, straight-sided, angular sided & parallel sided.

Taper Master Plugs are available for use with GO or NOGO ring gauges.

Mercury Tool & Gauge team of design and technical engineers will gladly assist your engineers in all phases of your spline gauge design and any other special requirements you may have.

spline ring gauges

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Industries Served

  • Aerospace
  • Automotive
  • Autosport
  • Avionics
  • Environmental Services
  • Medical
  • Military
  • Mining
  • Robotics
  • Security
  • Telecoms

About Mercury

Mercury Tool & Gauge offer an extensive range of products that are manufactured to meet the most demanding quality needs in today's market.


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  • Phone:
    +44 (0)2476- 694 -030
  • Fax:
    +44 (0)2476- 694 -070
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  • Address:
    Mercury Tool & Gauge
    221 Torrington Avenue
    CV4 9HN

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