The Hyper ToughTR17075C 6-Piece Needle File Set is a must-have for every toolbox. The set consists of one of each type of file: a round file, a triangular file, a round file, a half round file and a flat file. With removable handles for tight spaces, they have various shape and teeth formations for specific functions. A flat file has parallel rows of teeth for thickness. A round file, known as a "rat tail", has teeth all the way around and is used to enlarge openings. The triangle or "taper" file can be used to file grooves or sharpen saw teeth. A half round file is for both flat and concave surfaces for non-aggressive material removal and control. The needle file set is for more refined small projects performed by hobbyists, craftsman and jewelers. A storage bag is also included. Hyper Tough features a full line of hand tools, rotary tools, power tools, tool accessories and tool storage. When youre ready to make repairs or tackle home-improvement projects, Hyper Tough is ready. Set includes 1pc round, 1pc half round, 1pc square, 1pc equaling, 1pc flat and 1pc triangular file High carbon steel for sharpness retention Ergonomic, dual material comfort grip handle Great for fine finish work