"Katsuo shaver" refers to a Japanese katsuobushi kezuriki, a traditional tool used to shave dried bonito into thin flakes for use in Japanese cuisine. It operates similarly to a carpenter's plane or mandoline, with a sharp blade against which a block of dried bonito is shaved to produce fine flakes that can be used to make dashi or as a topping for other dishes.
"Katsuo shaver" refers to a Japanese katsuobushi kezuriki, a traditional tool used to shave dried bonito into thin flakes for use in Japanese cuisine. It operates similarly to a carpenter's plane or mandoline, with a sharp blade against which a block of dried bonito is shaved to produce fine flakes that can be used to make dashi or as a topping for other dishes.