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Rubert 131 | Series 100 Roughness Comparator – Spark Erosion (EDM) | Ra 0.4–25.0 µm, N5–N11, 7 Patches
Part Number : 131
With 7 patches covering Ra 0.4–25.0 µm (16–1000 µin), roughness grades N5–N11, the Rubert 131 gives a workshop reference for spark-eroded (EDM) surfaces. It is part of the Series 100 line, the heavy-duty comparators made for shop-floor use, and lets operators check a spark-eroded finish against reference roughness values. A lightweight Microsurf equivalent (331) is offered for office and design use.
Key features
- Machining method: Spark Erosion (EDM)
- Number of patches: 7
- Ra 0.4–25.0 µm / 16–1000 µin
- Roughness grades N5–N11
- Heavy-duty Series 100 construction for workshop use
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