Very aggressive, hard silicon carbide stone. Also suited for trueing other stones.
Suehiro Standard Series
The stones from the original Suehiro series have a relatively soft bond and are thus designed for low-alloy carbon steels (Blue and White Paper Steel). The stones should be sprayed with water before use. It is not recommended to keep them in water permanently. White aluminium oxide abrasive.
Suehiro is a smaller Japanese company which has been producing sharpening stones for three generations. Kenkichi Okumura, who founded the company, began with selling stones from his own natural stone deposit, which gained high recognition in the whole of Japan. As a result of many years of experience in the field of natural stones, Suehiro has been successfully producing synthetic sharpening stones since 1964.