Granite Squares Rulers
Used to inspecion verticality and parallelism as well as absolut 90 degree measuring
| Specification(mm) | SquarenessBetween adjacent measruing surface | Straightness of measuring surface | Parallelism between opplsite measuring surface | |||
| Grade(um) | ||||||
| 00 | 0 | 00 | 0 | 00 | 0 | |
| 160x160 | 2 | 4 | 0.8 | 1.7 | 2 | 4 |
| 200x200 | 2 | 4 | 0.9 | 1.8 | 2 | 4 |
| 250x250 | 2.2 | 4.5 | 1 | 2 | 2.2 | 4.5 |
| 630x400 | 2.6 | 5.2 | 1.1 | 2.3 | 2.6 | 5.5 |
Granite Squares Rulers
