| 摘要 |
A chuck is provided for receiving and holding inserts having a non-circular shaft. The chuck includes a body having a non-circular cavity, and a capping sleeve rotatable on the body and extending beyond an end of the body. A locking plate is provided in the portion of the capping sleeve which extends beyond the end of the body, the locking plate having a non-circular opening with a profile corresponding to the profile of the cavity. The capping sleeve may be rotated relative to the body to the place the profile of the locking plate selectively in registry, or not, with the profile of the cavity.
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