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 MeasuringSurface | Parallelism betweenOpposite 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
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Links：https://globefindpro.com/products/39394.html
Links：https://globefindpro.com/products/39394.html
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