Excellent tool. It makes sharpening a game as long as you read the instructions and watch some videos that explain important details. The only negative is the sharpening stones. They wear out relatively quickly. They last for about 10-15 sharpenings but fortunately they are cheap.

It does its job very well and the most important thing is that it is very easy to handle.. Get some spare parts as well, just in case

Basic chain maintenance accessory if you don't want to rely on chain sharpening from stores. You can easily sharpen it yourself, once you become familiar with the sharpening tool and with great precision and perfection. You can adjust the height of the chain guides as much as needed. It is easier than a file and more accurate than the wheel that goes down on the chain. Check out https://www.youtube.com/watch?v=n86-FB0nzmw which explains everything.