Sharpening nerds: I recently bought a Naniwa flattening stone and it is bowed: Convex on the ridged side so that each end hovers about 0.5 -1mm off the surface. Is this normal?
@chiroshi started
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Sharpening nerds: I recently bought a Naniwa flattening stone and it is bowed: Convex on the ridged side so that each end hovers about 0.5 -1mm off the surface. Is this normal?