<http://schema.org/description>
"&lt;p&gt;High toolholder gripping torque reduces the likelihood that a tool will slip within a toolholder during a cutting operation. A mechanical toolholder design provides a very high gripping torque via a worm gear that compresses a shallow-taper collet tightly around a tool shank.&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/articles/get-a-tight-grip>