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Rubert 013 | EDM Finish Scale to VDI 3400 | 12 Specimens, VDI 3400 Nos. 12–45
Part Number : 013
The Rubert 013 is a comparator scale for spark-eroded (EDM) surfaces, laid out according to guideline VDI 3400. Its 12 specimens correspond to VDI 3400 numbers 12 to 45 inclusive, so toolmakers and mould shops can match an eroded finish to the grade called up on a drawing. A label on the back of the scale lists the Ra roughness value of each patch.
Key features
- 12 spark-eroded (EDM) specimens
- Roughness values to VDI 3400 nos. 12–45 inclusive
- Back label states the Ra value for every patch
- Conforms to the VDI 3400 guideline
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