Consider the Lansky Quadsharp Multi-angle if you would to add or restore a new BEVEL  on an edge. //You will have a choice of : 17, 20, 25, or 30 degree bevels with this device.// It is FAST ! It is not a sharpener but it very quickly gets you past the task of putting on the bevel that you wish to have before you start the sharpening process.