hole punch vs perforator

hole punch

noun
  • A tool that is used to make holes in stationery for ease of filing. 

verb
  • To create a NAT, WAN-to-LAN port forwarding on the router. 

  • To punch holes using a hole punch. 

perforator

noun
  • A tool or machine that makes holes, or perforates, materials such as paper and card. 

  • A perforating artery or vein 

  • A machine that can bore a tunnel underground 

How often have the words hole punch and perforator occurred in a corpus of books? (source: Google Ngram Viewer )