Sigma Power - Gritomatic
December 16, 2015


Sigma Power

Sigma Power, the sharpening stone manufacturer in Japan, has designed these premium stones especially for tough-to-sharpen high alloy steels. Sigma Power is not exactly a common name outside of Japan, they are held in high regard with their rapid sharpening and ease of use. When using these stones, one can easily see it working, and they have a feel while sharpening remarkably like a natural water stone. In contrast with resin-magnesium or cement bound stones, these Select II stones have no binding material.
Konstantin Martynenko
Konstantin Martynenko

As the owner of Gritomatic online store I'd like to use this blog to talk with you and share my knowledge and experience in sharpening. English is not my native language, I am sorry for any mistakes and really hope it will not become a barrier between us. I will be happy to receive feedback from your side.