Clever designThis is the latest version of chainsaw chain sharpener. With two fixed grinding holes and a standard 30 grinding front angle, you can switch to both sides for use, which can be applied to more complex environments and save your time. Powerful and Durable- The chainsaw sharpener jig is made of rust-proof stainless steel alloy material. It is not only durable but also very strong. Everytime you sharpen the chain, the precise chain sharpener can ensure that every tooth is repaired after pulling the chain. It only takes 3-5 seconds to clean the dull chain again. Easy to Install and Use- The chain saw sharpening jig kit is mounted on the chain, ready to install and use, allowing you to finish sharpening the chain in no time. Simply pull the chain each time you sharpen it. Keeps oil on the chain and track to reduce friction and extend service life. Widely Application- Adopted a larger size than similar products, suitable for more saw chains on the market. Easy to use like a pencil sharpener.