The aim of this unit is to test whether the internal diameter of the tested sample is within standard or not.

- Judgment of reference: the small end must adapt to the internal circle of the samples, while the larger end should not adapt to the internal circle of the samples.

- It can be custom-made as different diameters.


Inquiry

The aim of this unit is to test whether the internal diameter of the tested sample is within standard or not.

- Judgment of reference: the small end must adapt to the internal circle of the samples, while the larger end should not adapt to the internal circle of the samples.

- It can be custom-made as different diameters.