3-piece set of chainsaw files in 3 sizes: 4.0 mm, 4.8 mm, 5.5 mm Safe to use: Our chainsaw files are protected at both ends, the finish is very smooth, safe and has no sharp edges. You no longer have to worry about hurting your hands when working. Efficient and durable: The round file has uniform and precise cutting teeth and a uniform diameter, which allows for fast and precise cutting while preserving and protecting the life of the chainsaw blade. Quickly and easily removes dull and grained metal and prevents jamming. High quality: The chainsaw files are made of carbon steel, which is characterized by high hardness, wear resistance, high strength and long service life. One-piece design, made by quenching, sharper and not easy to break. It can also be used for sanding various small objects, repairing DIY products, maintaining molds, etc.