Wide Applicability: Covers 30 different roughness levels, suitable for a variety of industries and application scenarios from fine processing to heavy machinery manufacturing and education and training, meeting diverse needs
Multi Function: This surface roughness standards set Can measure the roughness of 6 processing methods
Long-term Use: Carefully built with 45# carbon structural steel
Easy to Operate and Carry: The compact design is easy to carry, and the surface finish comparison can be easily completed even in complex working conditions