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Rubert 321 | Microsurf Roughness Comparator – End Milling | Ra 0.4–50.0 µm, Rz 1.6–160 µm, N5–N12
The Rubert 321 is a Microsurf comparator for end-milled surfaces. It carries 8 patches covering Ra 0.4–50.0 µm and Rz 1.6–160 µm, roughness grades N5–N12. Microsurf plates are the lightweight 300 series for office and design use, and each comes in a plastic wallet with an instruction card, making the 321 convenient for drawing offices specifying finishes. For workshop use, the heavy-duty Series 100 equivalent is the 121.
Key features
- Machining method: End Milling
- Number of patches: 8
- Ra 0.4–50.0 µm, Rz 1.6–160 µm
- Roughness grades N5–N12
- Lightweight Microsurf format in a plastic wallet with instruction card
- Specifications
| Part Number | 321 |
| Brand | Rubert |
| Series | Microsurf 300 (lightweight, office and design use) |
| Machining Method | End Milling |
| Number of Patches | 8 |
| Ra Range (µm) | 0.4 to 50.0 |
| Rz Range (µm) | 1.6 to 160 |
| N-Groups | N5 to N12 |
| Presentation | Plastic wallet with instruction card |
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