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The XT Xtreme bore gauge from Bowers Metrology can be adapted to a range of non-standard bore measurement applications thanks to the extended travel capability of its measuring anvils. One particular application is the accurate measurement of tapered bores, which is said to have now been rendered a relatively easy task by Bowers’ adaptation of its standard product.

In addition to fitting carbide ball contacts to XT Xtreme taper measuring gauges, an easy-to-use depth device is also included. While ball anvils enable precise point contact with the tapered bore, Bowers’ depth-stop fitment allows two precise diameter measurements to be taken at a known distance from each other.

Capturing two bore diameters at a known distance allows the user to calculate the exact angle of the taper.

All measurements can be instantly exported to a spreadsheet via the gauge’s RS 232 output.

Product information

  • IP65 rated — resistant to coolant, water and airborne particles
  • Can measure diameters from 3mm to 300mm
  • Large, clear digital display
  • Metric/inch conversion
  • RS 232 output


The Bowers Metrology Group specialises in delivering a full and comprehensive range of precision measuring systemss to some of the most competitive and demanding shop-floor environments. Over the years, Bowers has proven its success with rapid, sustained growth and now prides itself on being the world’s leading bore gauge manufacturer in terms of both production volume and breadth of product range. 

Already working in some of the most challenging industries such as oil and gas, defence, aerospace and automotive, the Bowers Metrology Group delivers cost-effective solutions to the most testing measurement problems, further strengthening its reputation for the superior quality, accuracy and usability of its precision measuring equipment. Striving for excellence in both the comprehensive range of products supplied and the many services offered to its customers, the Group’s aim is to build on this hard-won reputation and continue to exceed customers’ expectations.

As a member of the Bowers Metrology Group, Bowers UK supplies UK industry with an unrivalled choice of high-quality precision measuring equipment, bespoke system design and laboratory-based UKAS calibration services. Its pre-eminent position in the metrology market allows Bowers UK to provide its customers with a truly complete metrology service. What’s more, customers also benefit from the ‘one stop shop’ nature of the company's centralised sales, service, training and customer support for the complete range of Bowers, Moore & Wright, Baty International and CV Instruments products.

The all-inclusive nature of the Bowers Metrology Group can also be demonstrated by the wide range of superior hardness testers, surface finish and other material testing instruments supplied by CV Instruments.  

Bowers’ vision for the future is clear: to develop its position as a total metrology solutions provider, offering its customers a full range of products and services that are borne from its continued investment in both people and technology. 

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