<http://schema.org/description>
"&lt;p&gt;For companies that have long production runs on their turning centers, tool maintenance (changing inserts and replacing dull tools) must be performed several times during the production run.  And during a given tool's life, it is likely that tool wear will cause workpiece attributes to vary, requiring offset changes to be made at several points during the tool's life. &lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/columns/tracking-offset-changes-during-tool-maintenance>