Blog – tagged "Ra Value" – Shenzhen Xintianjian Industrial Co., Ltd.

Understanding CNC Machining Surface Roughness Standards

November 8, 2025
Posted by Globo
Posted in cnc machining, Manufacturing Standards, Ra Value, Surface Finish, Surface Roughness
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Explore essential CNC machining surface roughness standards, from the 3.2 µm Ra commercial finish to finer grades for precision parts. Learn to select the right Ra value.