Partly ground stone axes in the Paleolithic period were used for a wide range of applications such as hunting and disorganizing large-size animals, felling and cutting of trees, and soil digging; that these were partly ground was because when ax was pulled out of the soil and trees, these were able to be pulled out more smoothly.
旧石器時代の局部磨製石斧は、大型獣の狩猟や解体、木の伐採や切断、土掘りなど多目的に用いたもので、局部を磨いたのは土や木から斧を抜き取る際、いくらかでもスムーズに抜けるよう工夫したものであろう。