Okudo Suita is very rare now and almost impossible to find so fine as this one. Very very hard suita without any lines and with some Range patterns. Okudo suita is known for its speed and hardness as theu produced some of the hardest and fastest suitas that was very popular among carpenters in Japan.
For advance users only, as it is quite hard stone and best with Nagura. Very good size for all kind of tools !