パーフォレーター

noun

perforator

A device or tool for making holes, such as in paper, film, or medical contexts. The term is a direct loanword and is used in technical or specialized settings.

• このパーフォレーターは、一いち度どに20枚まいの紙かみに穴あなを開あけられます。

  This perforator can punch holes in 20 sheets of paper at once.