When the surface of your water stones has become hollow, this stone can be used to quickly flatten it again. You do this by moving the flattening stone quickly back and forth accross the surface of the water stone. An even surface of the water stone is very important for the sharpening process. The use of sharpening powder or water is not necessary.
Specifications
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Brand: Naniwa
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Type: flattening stone
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Use with water: optional
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Length: 300 mm
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Width: 150 mm
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Height: 20 mm
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Grit size Naniwa: 24 (A-110) / 220 (A-120)
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Useable for gritsize: 1000-5000
