Granite Box
Granite Box
Applicable to measurement of quareness and parallelism as well as the absolute
90°basement
| Specs (mm) | Perpendicularity betwee n the two measuring surfaces(μm) | Flatness and beeline of the measuring surface(μm) | Parallelism between relative measuring surfaces(μm) | |||
| Precision grade（μm） | ||||||
| 0 | 1 | 0 | 1 | 0 | 1 | |
| 100×100×100 | 4 | 8 | 1.7 | 3 | 4 | 8 |
| 150×150×150 | 4 | 8 | 1.7 | 3 | 4 | 8 |
| 200×200×200 | 4 | 8 | 1.8 | 3 | 4 | 8 |
| 250×250×250 | 4.5 | 8 | 2 | 4 | 4.5 | 9 |
| 300×300×300 | 5.2 | 10 | 2.3 | 4.6 | 5.5 | 10 |
| 400×400×400 | 6 | 12 | 2.6 | 5.2 | 6 | 12 |
| 500×500×500 | 7 | 14 | 3 | 6 | 7 | 14 |
| 600×600×600 | 8.5 | 15 | 3.5 | 7 | 8.5 | 15 |
