I could not get by without this sharpening jig from Granberg. It is worth more than it's weight in gold. I couldn't sharpen a chain free hand to save my life. This jig makes it sooo easy.

Your chain will last longer using round files too because the grinders remove too much material. The file allows a light touch up before a full resharping is required.

[Linked Image]

http://www.northerntool.com/shop/to...m_campaign=Granberg&utm_content=1976