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Toolmakers Flats

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Toolmakers Flats
Product Details

Opus Toolmakers Flats are made to BS 869 from a very pure high quality steel upset blanks.

A toolmakers flat is a small precision reference surface which are ideal for use in inspection and production areas.

Each flat is heat treated to give a working surface of 850 Hv  then stabilised.

The working surface of the flat is precision lapped to the high grade of accuracy required by the specification for flatness and finish.

Available in 4 sizes and are supplied in high quality cases complete with a UKAS calibration certificate.

DiameterWorking Surface
mmInch EquivalentFlatness between Two Parallel PlanesParallelism of Working Face to Base
632.50.000 5mm (0.000 020″)0.002 5mm (0.000 1″)

  • Available in 63mm, 100mm, 160mm & 200mm Diameters
  • Flatness Between Two Parallel Planes: 0.000 5mm
  • Parallelism of Working Face to Base 0.002 5mm
  • Material: Hardened Tool Steel
  • Supplied With a UKAS Calibration Certificate
  • Manufactured in the UK by Opus

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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