TSUBACO I type straight edge (made of stone)

[Features]
●Natural stone is used, so there is almost no change over time.
●Since there is no rust, maintenance is easy.
●It is a high-precision finish equivalent to a special grade.

[Use]
●For checking the reference plane when assembling devices and parts. (For measurement of flatness/straightness, etc.)
●For precision confirmation of precision machinery.

【specification】
● Straightness (μm): 3.0
- Accuracy (μm): *
-Length (mm): 750
-Perpendicularity (μm): 30
- Width (mm): 60
- Parallelism (μm): 6
- Thickness (mm): 60

[Specification 2]
-

[Material/Finish]
●Granite

[Set contents/accessories]
-

【Note】
●Because it is made of stone, it may break if a strong impact is applied.