| 摘要 |
A collet assembly for use on a support device comprising a rotatable base section, a support structure secured to the support device, with the support structure supporting the base section on said support device. A collet is connected to the rotatable base section, and the collet is be positionable at a plurality of angles. The collet assembly includes a locking device for locking the base section at one of the plurality of angles.
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