Bowers Ultima Bore Gauge offers a choice of resolutions up to 0.0001mm.

Bowers Ultima Bore Gauge offers a choice of resolutions up to 0.0001mm.


Featuring the NEW Bowers ‘FASTFIT’ measuring heads with extended measuring range (above 14mm), the Ultima boasts a simple lever operation and a constant measuring force, ensuring outstanding ease of use and repeatability under laboratory or shop-floor conditions.


  • UKAS certificates standard for all measuring heads and setting rings
  • Measuring range 2-310mm (0.080″-12.000″)
  • Resolution: 0.0001mm (0.00001″)
  • Constant spring pressure for improved repeatability
  • Good positive feel as heads self-centre in the bore
  • Bowers ‘Fastfit’ measuring heads for rapid changeover
  • Ceramic anvils on heads above 12mm
  • Blind-bore measurement standard above 12mm
  • Possible to connect several probe holders to one single readout to measure different bore sizes at one measuring station
  • The complete range of Bowers special heads is available for the Ultima (grooves, threads, splines, deep-bores etc)
  • Depth stops available for all heads
  • Available without digital readout unit (if not required)
  • Alternative Sylvac digital readouts are available
  • Interchangeable probe option, to allow use of other manufacturers probes and displays
USET2DWWithout Sylvac D62S display2-6POA
USET3DWWithout Sylvac D62S display6-10POA
USET4DWWithout Sylvac D62S display10-20POA
USET7DWWithout Sylvac D62S display6-20POA
USET8DWWithout Sylvac D62S display20-50POA
USET9DWWithout Sylvac D62S display50-100POA
USET10DWWithout Sylvac D62S display20-100POA



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