| 摘要 |
An extension chuck tool includes a shank body and sleeve. The shank body includes a first end forming a working end for connecting to a tool. The shank body includes a second end defining a connecting end for connecting to a power tool. A shank is formed between the first and second ends. The sleeve is pivotally disposed on the shank of the shank body. There is relative rotation between the holding device and the shank body.
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