Tom Veff is well known as the preeminent professional knife sharpener in the Pacific Northwest, and also as the designer of our patented Veff Serrations. He is truly addicted to sharp, as are many other knife owners. But Tom was unhappy with the tapered diamond sharpeners that were available, so he designed the Columbia River Knife & Tool Veff Sharp to be the ultimate portable multipurpose field and bench sharpener. The system includes an anodized knurled aluminum handle and two threaded 600-grit diamond-coated sharpening rods. The smaller rod has three 2 inch straight sections in sizes 3/32 inch, 3/16 inch, and ? inch. The larger rod has three straight sections in sizes 11/32 inch, ? inch and 5/8 inch. The larger rod also has a 6 inch flat side. The handle and rods fit neatly in a nylon storage pouch.