Long Series Gauge Blocks

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Product Details

Opus long series steel gauge blocks are carefully manufactured to ISO:3650:1998 from specially selected steel. They have a standard gauge block cross-section of 35mm x 9mm and are available in sizes ranging from 100mm to 1000mm.

Each gauge has clamping holes towards both ends for use with Opus toggle clamps so that combination lengths can be achieved both easily and safely.

Gauges can be supplied as individuals or in sets and are available in Grades 2, 1 and 0

The standard ML8 set comprises of 125, 150 175, 200, 250, 300, 400 and 500mm gauges.

All gauges can be supplied with a UKAS calibration certificate from our own laboratory if requested.


  • Sizes from 100mm up to 1000mm
  • Material: Hardened Tool Steel
  • Cross Section Size 35mm x 9.0mm
  • Manufactured to: ISO3650
  • Supplied as Individual or as Sets
  • Supplied With a UKAS Calibration Certificate

Key Features
  • Gauges have clamping holes at both ends for use with toggle clamps to assemble combination lengths.

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Contact Details


Phone: +44(0) 1536 204681
Fax: +44(0) 1536 205272

Unit 15 Maylan Road
Earlstrees Industrial Estate
NN17 4DR
Opening Times

Monday: 08:00 - 17:00
Tuesday: 08:00 - 17:00
Wednesday: 08:00 - 17:00
Thursday: 08:00 - 17:00
Friday: 08:00 - 13:00
Saturday: Closed
Sunday: Closed