| 摘要 |
A working head connected to an output shaft of a pendulum tool and a converter used when the working head isn't fitted in with the pendulum tool are disclosed. A connecting segment provided on a installation interface of both the working head and the converter is used to communicate a center hole with an outer hollow-out area. Thus, the amount of the hollow areas isolated from the center hole on the installation interface of the working head and the converter are reduced, so the integrity and structure strength of manufacturing the working head is better, and when the hollow areas isn't fitted in with the limit posts or the limit posts aren't provided, the working head or the converter and the pendulum tool can also connect with each other by the connecting segment fitted in with the limit blocks on the pendulum tool. |
