| 摘要 |
In order to facilitate the operational coupling of the actuation device of the toolholder to a tool with a shaft, provision has been made for a first surface 3, 14 which extends from a point of intersection with a limit surface of the aforesaid rod 2, 13 to a position located in the longitudinal direction of the rod 2, 13 and via a second surface 5, 15 which extends from a longitudinal edge or from a point close to said edge of the first supplementary limit surface of the rod 2, 13. This tool arrangement is applicable to rotopercussion-machine toolholders. <IMAGE>
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