【Product Information】You will receive three chainsaw chain sharpening file with different sizes, which can meet the needs of chainsaws with different gears, which can not only ensure the efficient cutting of chainsaw, but also prolong its service life. 【Material】This chainsaw file is made of high-strength steel, which is durable, safe and high hardness. The handle is made of plastic material, which is comfortable to hold and can be used for a long time without hurting hands. 【Size】This chainsaw file has three different sizes, including 4mm, 4.8mm and 5.5mm, which can be used for work more efficiently and is suitable for most chainsaws. 【Design】The surface of our chainsaw chain grinding file adopts double texture design, which increases the friction force, makes the chain more sharp and improves the working efficiency of the chainsaw. 【Easy To Use】When your chainsaw tool is no longer sharp and the chain edge of the chainsaw is blunt, you can use our chainsaw chain to grind the file without replacing the chain, which saves the cost and prolongs the life of the chainsaw.