| 摘要 |
A one-way drive rotor (3) is accommodated in a bore (4) of a driving part (1) of a tool and is held, on the one hand, by a shoulder (14) integral with the rotor and, on the other hand, by an annular component (7) on which the head (34) of a central screw (13) screwed into the rotor bears. The extent to which this screw is tightened defines the axial play of the rotor. The screw is hollow and has a push rod (9) passing through it which allows a ball (6) to be locked or released, this ball positively retaining a rotary member such as a drive socket, which is fitted onto the end fitting (5) which extends the rotor.
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