It's kind of hard to find an article with pictures - but check this out - 3min video with great pics of the tools: http://www.colorado.edu/news/r/1124c0243883c2

It's kind of hard to find an article with pictures - but check this out - 3min video with great pics of the tools: http://www.colorado.edu/news/r/1124c0243883c267a7759da4bc4a2902.html http://www.colorado.edu/news/r/1124c0243883c267a7759da4bc4a2...