| 摘要 |
A flexible socket extension includes two connectors disposed in two ends of a flexible housing, and a number of torque transmitting elements received in the flexible housing and coupled between the connectors. One of the torque transmitting elements includes a neck and a tongue which has a width greater than that of the neck. The other torque transmitting element includes a lateral groove for receiving the tongue, and having two juts extended into the lateral groove, for engaging with the tongue and for rotatably retaining the torque transmitting elements together.
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