A large bifacially worked core tool, normally oval, pointed, or pear-shaped, and one of the most typical stone tools of the Lower Paleolithic. It is the diagnostic implement of certain Lower Paleolithic industries (Abbevillian, Chellean, Acheulian), and one variety of the Mousterian. In spite of the name it was not an ax at all and probably served as an all-purpose tool. The oldest and crudest hand axes have been found in Africa; the finer, Acheulian tools are known from most of Africa, Europe, southwest Asia, and India. It was used for chopping, chipping, flaking, cutting, digging, and scraping. Hand axes first appear between 1 and 2 million years ago and they were common in assemblages for about a million years.
