| 摘要 |
The chuck head (12,12.1) has a coupling part, an inner clamp face (18) for a tool and an outer cone, and is divided into clamp jaws (22.1) with an elastic connection element (23) between each jaw. Each jaw has at least one recess (26.1), which has an expansion (28.1), which is larger in the tangential direction and is symmetrical to the recess. In the radial direction, the expansion is the same size as the recess, in the area of the clamp jaw.
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