Opus Metrology

Opus Metrology
Corby NN17 4DR
t: +44(0) 1536 204681
f: +44(0) 1536 205272
e: sales@opus.co.uk
Opus Metrology is the trading name of Thomas Salvesen Enterprises Ltd

Precision Cubes

Several cubes - web small

Precision Cubes
Opus Precision Cubes can be used as a general purpose reflector and for providing a 90 degree angle standard in three planes for setting or checking perpendiculars.

  • Standard Sizes available 50 mm (2 inch) or 25 mm (1 inch)
  • Made from high quality Tungsten Carbide or special Tool Steel
  • Supplied complete with a high quality wooden case
  • Supplied complete with a UKAS Calibration Certificate Free of Charge


Other size and accuracy of cubes can be supplied upon request.  For example  to an accuracy of 1 second instead of 2 seconds or with four faces lapped and polished



Standard Specification for all sizes

Lapped and polished faces

Three with two adjacent faces perpendicular to the base and one parallel to the base

Size of Faces

50mm (2 inch) or 25mm (1 inch)

Accuracy of 90 degree Angle

2 secs


Tungsten carbide


Material Characteristics:
Tungsten Carbide:
Coefficient of Thermal Expansion: 4.23 x 10-6 per C
Steel: Coefficient of Thermal Expansion: 11.7 x 10-6 per C

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