This is the big dog in terms of cutting anything you can bring to the tying bench! Very heavy blades with large serrations and a wire cutter for tackling the nastiest stuff in Fly Tying Town. Specifically designed to handle all the heavy new tying materials. Easily handles the macro work on big, thick sheets of foam, heavy leather, yarn, lead, wire, antron, rubber, flash, chenille, latex, tubing, braid, darlon and the list goes on. The mother of all scissors!