Granite straight edges
Granite straight edges
Applicable to measurement of straightness and flatness
| Specs (mm) | Beeline tolerance o f working surface(μm) | Parallelism tolerance between the upper and lower measuring surfaces(μm) | Perpendicularity between side surface&measuring surfaces(μm) | |||
| Precision grade（μm） | ||||||
| .00. | 0 | .00. | 0 | .00. | 0 | |
| 400x60x25 | 1.6 | 2.6 | 2.4 | 3.9 | 8 | 13 |
| 630x100x35 | 2.1 | 3.5 | 3.2 | 5.3 | 10.5 | 18 |
| 1000x160x50 | 3 | 5 | 4.5 | 7.5 | 15 | 25 |
| 1600x250x80 | 4.4 | 7.4 | 6.6 | 11.1 | 22 | 37 |
| 2000x300x100 | 5.4 | 9 | 8.1 | 13.5 | 27 | 45 |
