The Elcometer 127 Surface Comparators are available in sand,  shot or grit surface profiles

Each surface comparator is supplied with 5 profile grades ranging from 0.5 - 5.5mils..

Designed for use with the Elcometer 127 illuminated magnifier, each surface comparator has a hole in the centre allowing for clear visual comparisons to be made.

5 Roughness Values per Comparator.

E127----2 Elcometer 127 Sand Surface Comparator 0.5, 1, 2, 3, 4 mils

E127----3 Elcometer 127 Grit Surface Comparator 1.5, 2, 3, 4.5, 5.5 mils

E127----4 Elcometer 127 Shot Surface Comparator 2, 2.5, 3, 4, 5.5 mils

E127----1 Illuminated magnifier (x 5) with integrated surface comparator holder -

STANDARDS:

AS 3894.5, ASTM D 4417-A, SSPC PA 17