| 摘要 |
[Problem] To provide a hammer drill improved for enhanced drilling performance. [Solution] A hammer drill having: a linear impact mechanism section (115) for applying an impact force in the longitudinal axis direction to a tool bit (119); and a rotational drive mechanism section (117) for rotationally operating the tool bit (119) about the longitudinal axis. The hammer drill is configured so that a rotational impact can be applied to the tool bit (119) in the rotational direction. |
