| 摘要 |
A stud driver for the insertion of studs into a workpiece. The stud driver automatically grasps the stud once the stud is inserted into the stud driver. Once the stud is inserted into the workpiece, the stud driver automatically releases the stud. The stud driver employs a set of jaws to grasp the stud. The jaws, which are biased open by a plunger means, are enclosed with a carriage. In the peripheral wall of the carriage, two sets of balls are held. The balls prevent the jaws from sliding out of the carriage and from rotating in the carriage. The carriage is driven by a driven head which is connected to the driving means. The carriage and driven head are held in an uncomplicated hollow cylinder which is the body.
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