1Versatile Compatibility: The 4.8mm blade diameter and 17mm blade length make the bits suitable for various chainsaw types, including small oil saw 325 and large 8 chain. 2Premium Material: The sand ensures efficient and precise sharpening, allowing you to maintain the sharpness and cutting performance of your chainsaw effortlessly. 3Easy To Use: The chainsaw drill bit features a 6mm shank diameter, ensuring a secure and stable fit for easy sharpening. Simply attach the drill bit to your chainsaw and sharpen the blades with ease. 4High Performance: The threaded design and M5 thread diameter further enhance the stability and compatibility of the drill bit. With its user friendly design, the tool is suitable for both professionals and beginners. 5Practical Tool: Whether you are a professional lumberjack or a DIY enthusiast, this chainsaw sharpening tool is a must have for maintaining the sharpness and cutting power of your chainsaw. 5 x ChainsawSharpenerBits 2 x Nuts 1 x Wrench