The models are:
Roughness is displayed in both "classes" and "roughness averages" for easier identification. Available in Metric only.
| Part Number | Description | Section Profiles |
| E129---1 | Elcometer 129/1 Rubert Grit Surface Comparator | 0.4, 0.8, 1.6, 3.2, 6.3, and 12.5μm |
| E129---2 | Elcometer 129/2 Rubert Shot Surface Comparator | 0.4, 0.8, 1.6, 3.2, 6.3, and 12.5μm |
| E129---3 | Elcometer 129/3 Rugotest Shot & Grit Surface Comparator | N6, N7, N8, N9, N10 and N11 equivalent to 0.8, 1.6, 3.2, 6.3, 12.5, and 25μm roughness averages respectively |
