Disclosed is a device comprising a mandrel (12), a steady rest (14), and a dog (30). At least the mandrel (12) is mounted so as to be rotatable about the longitudinal axis while the dog (14) is fixed to the mandrel (12) and can be engaged with the workpiece (50) when the workpiece (50) is clamped between the mandrel (12) and the steady rest (14) in such a way that the dog (14) transmits a rotary movement of the mandrel (12) to the workpiece (50). The dog of the inventive device is provided with a spring element (30) which can be coupled in a pretensioning manner to the workpiece (50) so as to transduce torque.
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