Incra RULE18 18-Inch Incra Rules Marking Rule
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<b>[Product Information]</b><br>
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<li>Micro-fine marking holes and slots at every 1/16", 1/32" and 1/64" instantly locate a sharp pencil point or scribe EXACTLY where you want it.</li>
<li>Instantly mark your position with zero uncertainty, zero parallax and zero eye strain</li>
<li>Flexible structure for working on curved surfaces</li>
<li>Ultra thin for ultra precision</li>
<li>Common ruler?...NO.  Common sense?... Yes!</li>
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