Risam RWD-1 JIS #1000 Diamond Grinding Stone on a Wooden Base

Product detailed description

RISAM Diamond Sharpening Stone, JIS #1000

The RISAM diamond sharpening stone uses monocrystalline diamonds for quick sharpening and polishing of any type of blade. The diamond plate has a grit size of JIS #1000 for minor repairs and fine grinding. The sharpening stone features a unique smooth diamond sharpening surface. The aluminum base with a non-slip bottom allows for safe and easy sharpening

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Knife Sharpening Course

We regularly hold knife sharpening courses for beginners, where we’ll teach you how to sharpen knives on stones using the traditional Japanese method.

How to Use the JIS 1000 Diamond Sharpening Stone

The 1000-grit diamond stone is ideal for general sharpening and restoring knife edges.

Instructions for use

1. Preparation
2. It is not necessary to soak the stone. For smoother sharpening, you can lightly moisten it with water.
3. Setting the angle
4. Hold the knife at an angle of approximately 15–20° - you can use the RISAM sharpening angle guide
5. Sharpening
6. Draw the knife across the stone from heel to tip with light pressure. Repeat several times on one side, then flip the knife and repeat the process.
7. Finishing
8. Finally, use light strokes without pressure to fine-tune the edge.
9. Maintenance
10. After use, rinse the stone with water, let it dry, and store it in the plastic case.

Recommendations

• Do not apply pressure – the diamond surface sharpens very effectively on its own
• For maximum sharpness, we recommend following up with a finer stone (e.g., JIS #3000, JIS #5000)
• Do not use oil, only water

Key Benefits

• Dull knife → quick edge restoration
• The diamond surface sharpens effectively without the need for heavy pressure
• Time-consuming preparation → immediate use
• No need to soak the diamond stone; just start sharpening
• Unstable sharpening → safe operation
• The non-slip base holds the diamond stone firmly in place
• Versatile use → one stone for multiple tools
• Suitable for knives and tools (wood, garden)
• Uneven sharpening → precise and consistent results
• Flat diamond surface ensures stable contact with the blade

Practical use

✔ Ideal for:

• common kitchen knives
• regular blade maintenance
• minor damage repairs

✔ Also suitable for:

• woodworking tools
• gardening tools

✖ Not suitable for:

• ceramic knives
• final polishing (recommended to use a finer stone)

Compatibility and limitations

• Works with most steel knives (European and Japanese)
• No soaking required – can be used dry or with water
• Do not use oil
• Not suitable for ceramic materials

Key Specifications

• Grit: JIS #1000 (medium – fine grinding)
• Dimensions: 200 × 70 × 15 mm
• Abrasive material: monocrystalline diamonds
• Base: aluminum + non-slip pads
• Cover: plastic (for protection and transport)

Variants / selection

• JIS #1000 → ideal for general sharpening
• For greater sharpness, we recommend following up with:
• JIS #3000 (fine finishing)
• JIS #5000+ (edge polishing)