Isostatic positionning of a piece in a vice, the reference surface being against the fixed part:
<ul><li>0: fixed part of the vice;</li>
<li>1: mobile part of the vice;</li>
<li>2: piece to be machined;</li>
<li>3: face to be machined;</li>
<li>4: reference surface;</li>
<li>5: blocks;</li>
<li>6: cylinder</li></ul>
<a href="//commons.wikimedia.org/wiki/User:Cdang" title="User:Cdang">Cdang</a>
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