How To Sharpen a Chain SawMaking Sawdust? How to hand sharpen a chainsaw Woodcutter Supply Tool Tip #10 Sharpen Chain.
The secret is this - The most common mistake in sharpening a chainsaw is not filing the rakers.
Think of it this way - Each tooth is comprised of two parts, the cutting edge and the height or depth of cut regulating RAKER.
You can have the sharpest chain and cut nothing if the sharp edge isn't contacting the wood because the RAKER is too long. This video covers everything you need to know.