Granite 3-Axis Ref – Square

Made out of selected Black Granite having uniform Texture & Colour, very dense & herd wearing, needs no oiling, Velvet lapped finish on working surfaces. Suitable for the squareness checking of precision machines and alignments in precision measurements.

Size in mmSquareness Accuracy (In µm)Straightness Of Working (Surface In µm)
1000 X 750 X 7074
1000 X 1000 X 7074
Other sizes on request.
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