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Rubert 133 | Series 100 Roughness Comparator – Hand Filing | Ra 0.4–6.4 µm, N5–N9, 5 Patches
The Rubert 133 is a Series 100 roughness comparator dedicated to hand-filed surfaces. Its 5 patches cover Ra 0.4–6.4 µm (16–250 µin), roughness grades N5–N9. Series 100 plates are the heavy-duty design intended for workshop use, so the 133 can be kept beside the machine for comparing parts with known reference finishes. A lightweight Microsurf equivalent (333) is offered for office and design use.
Key features
- Machining method: Hand Filing
- Number of patches: 5
- Ra 0.4–6.4 µm / 16–250 µin
- Roughness grades N5–N9
- Heavy-duty Series 100 construction for workshop use
- Specifications
| Part Number | 133 |
| Brand | Rubert |
| Series | 100 (heavy-duty, workshop use) |
| Machining Method | Hand Filing |
| Number of Patches | 5 |
| Ra Range (µin) | 16 to 250 |
| Ra Range (µm) | 0.4 to 6.4 |
| N-Groups | N5 to N9 |
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