| 摘要 |
A pen vise includes a jaw assembly having parallel front and rear grooved bars which are drawn together by two clamping bolts located at opposite ends of the jaw assembly in order to secure multiple workpieces between the grooved bars. The rear grooved bar has a longitudinal projection of dovetail cross section that slideably engages a groove of dovetail cross section on a base member of the vise, so that the jaw assembly can be moved in an X direction to position each of the workpieces beneath a machining axis. The jaw assembly is disposed between front and back walls of the base member. A securing bolt engages a threaded aperture in the front wall and both indexes and clamps the jaw assembly against the rear wall.
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