auger vs milling cutter

auger

noun
  • A carpenter's tool for boring holes longer than those bored by a gimlet. 

  • A snake or plumber's snake (plumbing tool). 

  • A hollow drill used to take core samples of soil, ice, etc. for scientific study. 

  • A tool used to bore holes in the ground, e.g. for fence posts 

verb
  • To use an auger; to drill a hole using an auger. 

  • To proceed in the manner of an auger. 

milling cutter

noun
  • A rotary cutting tool typically used in milling machines. 

How often have the words auger and milling cutter occurred in a corpus of books? (source: Google Ngram Viewer )