<http://schema.org/description>
"Imagine being able to cut grooves to the thickness of a human hair (0.0019 inch). It\u2019s hard to picture, but when you see for yourself micro-medical devices, dental implants and micro-electronic components that feature micro grooves, you realize that indeed micro grooving tools are necessary."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/articles/grooving-tools-as-fine-as-a-strand-of-hair>