Granite Square
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The granite square is a professional measuring tool suitable for inspection, measuring, scribing, industry engineering, and equipment installation. Our granite square ruler is used to inspect the verticality of work piece. The flatness precision is in line with the GB6092-85 standard, and the verticality standard is GB6092-85.
This precision granite square is designed with holes to reduce weight and provide convenience for the processing. The side tolerance is 0.02. As the important measuring tool, it is characterized by high precision, good stability, and convenient maintenance.
Special or large size can be customized.
Parameters| Size(mm) | Verticality Between the Measuring Plane and Basal Plane | Flatness or Straightness of the Measuring Plane | Flatness or Straightness of Basal Plane | |||
| Precision (μm) | ||||||
| 00 | 0 | 00 | 0 | 00 | 0 | |
| 100×63 | 2 | 4 | 1 | 1 | 1 | 1 |
| 160×100 | 2 | 4 | 1 | 2 | 1 | 1 |
| 250×160 | 2.5 | 5 | 1 | 2 | 1 | 2 |
| 400×250 | 3.5 | 7 | 1 | 2.5 | 1 | 2 |
| 630×400 | 4.5 | 9 | 1.5 | 3 | 1 | 2.5 |
| 1000×630 | 6 | 12 | 2.5 | 5 | 1.5 | 5 |
Related Names
Foot Calculator | Inspection Tools | Granite Measuring Tool
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