Double Side:3000/10000# - A ruby sharpening stone (3000 Grit), the other side is agate stone (10000 Grit).
- A fine-grained whetstone lubricated with oil, used for fine sharpening.
- The Ruby sharpening stone and Agate Stone,For Polishing,Sharpening.
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Wide Application - Material:Ruby stone and natural agate (as it is natural stone, some stone has other color like black or white dot etc, please pay attention)
- Mainly used in industrial instrumentation, precision parts, miniature knives, stones, measuring tools, cutting tools, instruments, carbide, etc.
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Extremely Hard - Can Make Mirror surface, mirror finish.
- Its extremely hard, maintain their shape well and are resistant to wear.
- The Ruby Sharpening stone is made from sintered crystals of synthetic ruby.
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