BM Anthem Burnt Bevel?

[cashville]

I received a Benchmade Anthem in the mail yesterday. I'm really loving the knife so far. Something that immediately caught my eye was a dark line that follows right over the top of the bevel (or in the picture, right underneath because the picture has the blade upside down.) Is this line from the personal who sharpened the knife at the factory sharpening the same point for too long on a belt sander and creating too much heat at one point and "burning" the blade? I wonder if this would slightly affect the heat treat. I am thinking I may send it in to BM to have them take a look. The other side of the blade doesn't have this issue at all. Would you send the knife in?

 

[The Aflac Duck]

I'm pretty sure if it was burnt you'd see a yellow or blue discoloration. Not sure what caused you issue though, maybe it's a hamon

 

[ATJ999]

Not saying that this is what it is, but I get something VERY similar when I use a loaded felt belt, or a loaded strop. Only with certain stonewashed blades or acid etched stonewash. Some of mine do, and some don't. The compound will say and stay well, until you take a course side of a sponge to it, not too hard, with soap and clean it off.
Like I said, not saying that is what it is, just telling my experience.
I have had "overcooked" edges, the very mild ones seem to have just a slightly different tint of metallic(silvery line above the secondary bevel). Difficult to explain. More severe is just like Blues said, it will be yellow or blue or rainbowish.

 

[lex2006]

I agree withATJ999 , some guys will finish sharpening with a scotch Brite belt it leaves a very similar line on the edge

 

[Misanthropia]

Looks like whoever sharpened it had too acute of an angle when they went to buff it, thus polishing above the shoulder of the edge. This is quite common in production knives. A burnt edge will look oxidized.

 

[G. Scott H.]

Looks like whoever sharpened it had too acute of an angle when they went to buff it, thus polishing above the shoulder of the edge. This is quite common in production knives. A burnt edge will look oxidized.

That's what I was thinking. I have a number of knives from various companies that came this way.