| 摘要 |
A nail file having an excellent and uniform filing property and a method for greatly facilitating the manufacture of same are provided. This nail file has a number of file blade formed by a number of edge lines of concave portions randomly or irregularly etched in the surface of a flat metal plate. These concave portions have a diameter of 100 through 300 microns, a depth of 10 through 80 microns and a distance between the adjacent edge lines of 10 through 100 microns. The concave portions are photographically etched in the surface of a flat metal plate by using a photosensitive resin.
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