An artefact which is intended to operate and supply power to an artefact (instrument) with an edged or pointed end for making holes in hard substances by revolving or by a succession of blows.
An artefact which is intended to operate and supply power to an artefact (instrument) with an edged or pointed end for making holes in hard substances by revolving or by a succession of blows.
An artefact which is intended to operate and supply power to an artefact (instrument) with an edged or pointed end for making holes in hard substances by revolving or by a succession of blows.