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Granite Square Ruler

This granite square ruler is mainly used to test the verticality or degree of parallelism. It is manufactured in accordance with the standard of GB6092-85. We can customize precision granite square rulers of special or large sizes.

Parameters
Type (mm) Squareness between Adjacent Measuring Surfaces Straightness of Measuring
Surface
Parallelism between
Opposite Measuring Surfaces
Precision grade (μm)
00 0 00 0 00 0
160 × 160 2 4 0.8 1.7 2 4
200 × 200 2 4 0.9 1.8 2 4
250 × 250 2.2 4.5 1 2 2.2 4.5
300 × 300 2.6 5.2 1.1 2.3 2.6 5.5
400 × 400 3 6 1.3 2.6 3 6
500 × 500 3.5 7 1.5 3 3.5 7

Related Names
Surveying Tool | Machine Parts Surface Inspection | Precision Measuring Instrument

Inquiry Form
Product List

Hebei Jingda Machine Tools Manufacturing CO., Ltd.

Address: #4 Road, Industrial Development Zone, Botou City, Hebei Province, China.

Tel.:
+86-317-5561573
+86-317-8225222

Fax: +86-317-8294068

E-mail:
juliet@jingdagroup.net jann@jingdagroup.net
richard@jingdagroup.net

Contact Person: Juliet Wong / Ann Qu / Richard Su

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