fretsaw vs reciprocating saw

fretsaw

noun
  • A saw consisting of a metal frame having a fine-toothed narrow blade held under tension, used in making curved cuts. 

verb
  • To cut with a fretsaw. 

reciprocating saw

noun
  • A power saw which moves the blade back and forth. 

  • A sawzall; a tool frequently used for demolition 

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