If you watch food competition shows, you'll probably see a competitor or chef expertly running their knives over that steel tool pictured above. In fact, you might even own one of those steels if you have a big knife set or knife block.
So do you know what that tool is? It sharpens knives, right? But here's where you're wrong: that tool, no matter what it is labeled, is decidedly not a sharpening steel.