Question

What is a RA tester ?​

Answer 1

Answer:

A roughness tester is used to quickly and accurately determine the surface texture or surface roughness of a material. ... A roughness tester shows the measured roughness depth (Rz) as well as the mean roughness value (Ra) in micrometers or microns (µm).

Answer 2

Answer:

A roughness tester is used to quickly and accurately determine the surface texture or surface roughness of a material.A roughness tester shows the measured roughness depth (Rz) as well as the mean roughness value (Ra) in micrometers or microns (µm).

Explanation:

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