Quote Originally Posted by alx View Post
You can see the false edge (wire burr) folding over this side from the back.
I am curious about what you call a false edge. Although I can't see anything in your image, I know the digital image does not begin to capture what you see looking at the specimen "live" with your eyes. Do you have another image that maybe shows this more clearly?

I would also comment that I have observed that the edge is a magnet for tiny particles of slurry, which you likely cannot distinguish from the steel in an image like this. As an example, I was looking at an edge the other day that had been run under the water tap for about a minute, and then sonicated in solvent and then blown dry with compressed air. Even after that, I could not find a length of clean edge more than a micron or two long without a particle obscuring the edge.