puncture vs swarf

puncture

verb
  • To pierce; to break through; to tear a hole. 

noun
  • A hole in a vehicle's tyre, causing the tyre to deflate. 

  • The act or an instance of puncturing. 

  • A hole, cut, or tear created by a sharp object. 

swarf

verb
  • To grind down. 

noun
  • The waste chips or shavings from an abrasive activity, such as metalworking, a saw cutting wood, or the use of a grindstone or whetstone. 

  • A particular waste chip or shaving. 

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