| 摘要 |
A stop gauge having a post to support a block rotatable to disengage locking parts and moveable on the post to various locked positions, together with an indicating arm similarly engaging the block and rotatable in the block to engage and disengage similar locking parts after movement to different positions, an indicating head at the end of the arm to engage a work piece for determining the position of such workpiece on a machine tool table for example.
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