This video gives some detailed instructions on how to get a good grind using a Simington Chain Grinder. There are some very specific....does...and don'ts when it comes to grinding chain. This video covers what you need to know....

I normally grind my chains on a Simington chain grinder. This grinder does a pretty good job and if you would like to learn more about that , I do have a video coming out about that soon. That being said, it is still very good to actually know how to chisel file using a hand file. This is a skill that has served me well and is indispensable in many ways.
It can turn a "bad chain day" ( that's when a guy dulls all his ground chains early in the work day) from a complete disaster , into a relatively productive day.
It gives you more freedom and independence when it comes to sharp chains. It can also save you from so much grinding, because once your good at filing, it's relatively fast, and it works great for touching up those wood dull chains and getting that nice sharp cutting chain back in action!