| 摘要 |
<p>The tool has a hard material insert (1) with two diametrically facing radial shanks (4) which taper radially outwards in a cross section, where the radial shanks have a concave recess at a connecting side (7) of the radial shanks. The hard material insert is formed as a two-fold insert in a rotation symmetric manner, where a middle reinforcement (3) of the insert has a circle-arc-shape in the axial cross section. The connecting side of the radial shanks runs straight in the axial cross section. The hard material insert is connected with a recess in a form-fit manner.</p> |
