Abstract: A nail file that can prevent clogging without frequently performing an operation of removing filings from file teeth and can effectively enhance grindability is usable to quickly files nails. The nail file includes a plate-shaped base material, and a plurality of through-holes. The plurality of through-holes are formed on the base material, have opening portions as file teeth at both ends, and a shape of at least each of the opening portions at one end is a polygon. The opening portions at both the ends of the through-holes, the shape of each of the opening portions at the one end may be preferably a polygon, and the shape of each of the opening portions at the other end may be preferably a circle.