Kuromaku

Shapton is a respected Japanese whetstone manufacturer, known for producing some of the hardest and most durable synthetic stones on the market. In our hiomakivi.fi online store, you’ll find three popular series: Shapton Glass, Shapton Kuromaku, and the top-tier Shapton RockStar.
All Shapton stones are of the “splash and go” type – sharpening can begin as soon as a small amount of water is applied to the surface. A short soak of about 5 minutes is possible, but prolonged soaking is not recommended.
In our own tests, Shapton stones have stood out thanks to their grinding power, consistency, and ease of use. Whether you're sharpening kitchen knives, tools, or razors, Shapton delivers performance trusted by both professionals and enthusiasts.