Atoma Wide Surface Repair Grindstone with handle #400 (Tsuranaoshi)

Why do we need Surface Repair Grindstone? (Tsuranaoshi-面直し)

What if you sharpen knives with uneven whetstone? Your sharpening result would be uneven too.

The surface of whetstone will gradually get distorted as you use it. From time to time, you better check the condition of whetstone and flatten the surface with this item.

Great for those who take extra care for sharpening.

See the tutorial video: How to fix the broken knife tips with rough sharpening stone.