This comes from the delicious ribeye cut. Tomahawk steak is a cut of beef ribeye that has five or more inches of extra rib bone for presentation purposes. It's called a "tomahawk" cut because the steak with the long bone resembles a single-handed axe. Dry Aging is the process by which large cuts of beef are aged for anywhere from several weeks or several months before being cut into steaks. This process helps the steak develop superior flavor and tenderness.