This implement, converted from a carpenter's plane, had a small box in which the blade was positioned upward, and the small box had a drawer from which the shaved katsuobushi pieces were removed.
この鰹節削り器は、大工道具の鉋を刃を上向きにして小箱に据え付けたもので、小箱には引き出しがついており、削った鰹節が取り出せるようになっている。