Constructed with 400 grade stainless steel, Dr. Slick ECO All-Purpose Fly Tying Scissors are one of the best values in fly tying tools. All-Purpose fly tying scissors, as the name implies can be used for a variety of flies and fly tying materials including synthetic fly tying materials. have. Based on the the high-quality fly tying tools of Dr. Slick, the Dr. Slick Eco All-Purpose Fly Tying Scissors have the best price on quality fly tying scissors. These fly tying scissors feature serrated blades with a satin finish.