saw vs throatless shear

saw

noun
  • A tool with a toothed blade used for cutting hard substances, in particular wood or metal. 

  • Such a tool with an abrasive coating instead of teeth. 

  • A sawtooth wave. 

  • A musical saw. 

verb
  • To make a motion back and forth similar to cutting something with a saw. 

  • To be cut with a saw. 

  • simple past tense of see 

  • To form or produce (something) by cutting with a saw. 

  • To cut (something) with a saw. 

throatless shear

noun
  • A cutting tool used to make complex straight and curved cuts in sheet metal. 

How often have the words saw and throatless shear occurred in a corpus of books? (source: Google Ngram Viewer )