hammering vs hitting

hammering

noun
  • A period of being beaten or hammered. 

  • A heavy defeat. 

  • A dented appearance on silverware, produced by successive blows of a hammer. 

hitting

noun
  • A series of hits or blows directed at a person or object. 

  • The batter's hitting improved with practice. 

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