chamfer vs fuller

chamfer

verb
  • To cut a groove in something. 

  • To cut off the edge or corner of something. 

noun
  • An obtuse-angled relief or cut at an edge added for a finished appearance and to break sharp edges. 

fuller

verb
  • To form a groove or channel in, by a fuller or set hammer. 

noun
  • A person who fulls cloth. 

  • A convex, rounded or grooved tool, used by blacksmiths for shaping metal. 

  • A groove made by such a tool (in the blade of a sword etc.). 

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