This 8 in. long file is actually meant to be
a nail file covered with industrial diamond dust. Available in wide width only,
it is ideal for smoothing corners and edges of rough surfaces in a variety of
applications. Its great filing ability makes it useful in book and paper
conservation. This file is highly recommended by a major museum for drawing
and sculpting the corners of cut mats, and it will not leave any grit on the
surface of the bevel.