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Rubert 129 | Series 100 Roughness Comparator – Grit Blasting | Ra 0.4–12.5 µm, N5–N10, 6 Patches
The Rubert 129 is a Series 100 roughness comparator dedicated to surfaces blasted with angular grit. Its 6 patches cover Ra 0.4–12.5 µm (16–500 µin), roughness grades N5–N10. Series 100 plates are the heavy-duty design intended for workshop use, so the 129 can be kept beside the machine for comparing parts with known reference finishes. A lightweight Microsurf equivalent (329) is offered for office and design use.
Key features
- Machining method: Grit Blasting (angular particles)
- Number of patches: 6
- Ra 0.4–12.5 µm / 16–500 µin
- Roughness grades N5–N10
- Heavy-duty Series 100 construction for workshop use
- Specifications
| Part Number | 129 |
| Brand | Rubert |
| Series | 100 (heavy-duty, workshop use) |
| Machining Method | Grit Blasting (angular particles) |
| Number of Patches | 6 |
| Ra Range (µin) | 16 to 500 |
| Ra Range (µm) | 0.4 to 12.5 |
| N-Groups | N5 to N10 |
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