Tool, you have access to a number of surprising tools. Here's how to make the most use out of your Leatherman's file.

While a traditional sandpaper-like file can leave nails feeling jagged, rough and full of micro-tears ... Promising review: ...

To tackle the texture of the top of the nail bed as well as the shape of the tips, this four-sided file features three different textures as well as an emery board to buff out ridges and add shine.