chopper tool

noun
  1. a core tool of flint or stone, with a transverse cutting edge, characteristic of cultures in Asia and parts of the Middle East and Europe
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012