palette knife vs spatula

palette knife

noun
  • In painting, a small, edge-less, more or less flexible steel blade used to mix paint on a palette and sometimes to apply paint to a surface. 

spatula

noun
  • A thin hand tool, often made of nickel, for handling chemicals or other materials, when weighing, etc. 

  • A kitchen utensil consisting of a flat surface attached to a long handle, used for turning, lifting, or stirring food. 

  • A croupier's tool for turning up cards in a casino. 

  • A kitchen utensil consisting of a flexible surface attached to a long handle, used for scraping the sides of bowls. 

  • A sclerotized, T-shaped plate in the prothorax of larvae of flies belonging to family Cecidomyiidae, the gall midges. 

verb
  • To strike with a spatula. 

  • To lift with or as if with a spatula. 

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