Naniwa Super Ceramic Waterstone (Whetstone)
The NANIWA SUPER serries is the highest grade of grinding waterstones, which is the product of Naniwa Polishing Industry's long-accumulated technology.
The sharpening taste, which exceeds the limit of artificial whetstones, is excellent without any slippage and with excellent shiarpening ability on a blade edge.
It is the very same sharpening taste as that of natural whetstones.