There are many chopsticks in Japan.
Japanese Traditional Tool
Kanna use to shave chopsticks.
Shaves seven angles to bottom only Craftsman of Daikokuya in Japan.
Breath,Stop and Shave
In order to shave seven angles to closer tip point, the craftsman shaves with stop a breath for do not move hand.
Not only shave to seven angles but also important to take total balance.