forceps vs pair of pincers

forceps

noun
  • An instrument used in surgery or medical procedures for grasping and holding objects, similar to tongs or pincers. 

pair of pincers

noun
  • A gripping tool, pivoted like a pair of scissors, but with blunt jaws. 

How often have the words forceps and pair of pincers occurred in a corpus of books? (source: Google Ngram Viewer )