Features: This set has three sizes 5/32'+3/16'+7/32' option, convenient for you to choose the right file according to the different chains. Selected from high strength steel, which increases the service life of the product. Chain saw files are high quality steel, rust and wear resistant, high hardness steel is not easy to deformation, easy and convenient to operate, and saves time and effort. Advanced manufacturing process, high-quality finishing, suitable for chainsaws, chainsaws, household chainsaws and other metal grinding. When polishing chainsaws, the file can only be polished in one direction, not in two directions, otherwise it will damage the file. Specifications: Component:Steel Diameter:4mm/4.8mm/5.5mm Size:Approx.245mm/9.46inch Package Includes: 3Pcs Chainsaw Files note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.