1A grater (especially the Japanese variety) used to grate foods very finely, such as daikon or ginger.
大根をおろし金でおろしてポン酢をかけた。
I grated daikon with a grater and poured ponzu over it.
生姜はおろし金で細かくおろすと風味がよく出る。
Grating ginger finely with a grater brings out its flavor well.
おろし金はステンレス製のものが錆びにくくて便利だ。
Stainless-steel graters are convenient because they don't rust easily.