angle grinder vs swedge

angle grinder

noun
  • A usually hand-held grinder which uses a pair of internal gears to place the rotational axis of the grinding or cutting wheel perpendicular to that of the driving motor. 

swedge

noun
  • A tool (originally a bevelled chisel) for making grooves in horseshoes. 

  • The drug MDMA. 

verb
  • To shape metal using a hammer or other force. 

  • To leave (a restaurant etc.) without paying. 

  • To fold under or round an object. 

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