What has been dubbed "LOW" for Line of Weld because that is what it resembles, is a piling up a metal at the base of the burr. Maybe this is what some folks call a wire edge?
It looks like this:
If the flimsy part of the burr above it is removed it looks like this:
It is a piling up of soft crappy junk metal at the base of a burr that actually extends down from the edge over the bevel. And, it's stuck there quite firmly. A leather belt won't remove it but instead just polishes it.
How do I know this? I pushed the tip of an Exacto blade up the side of the bevel until it impacted the bottom edge of the LOW. I was then able to push the pile of metal off the bevel and over to the back side of the blade.
I put the tip of the Exacto knife where the red arrow is a pushed up the side of the bevel. You can see how the pile of LOW crud was pried from the side of the bevel and pushed over to the back side of the blade, exposing the true, nice and toothy edge it concealed.
If you don't know it's there, LOW is a problem because it can actually be sharpened to a very sharp edge, but it's crap metal, so you have to find a way to remove it. Because it's soft junk metal it's easy to get it really sharp and it can fool you into thinking you have a beautiful super sharp edge when really it's just sharpened crap on top of the actual hard edge of the blade.
Mr. Sharpco, these images were all taken with:
https://www.amazon.com/Celestron-Handhel...B00CMJ1I08
It looks like this:
If the flimsy part of the burr above it is removed it looks like this:
It is a piling up of soft crappy junk metal at the base of a burr that actually extends down from the edge over the bevel. And, it's stuck there quite firmly. A leather belt won't remove it but instead just polishes it.
How do I know this? I pushed the tip of an Exacto blade up the side of the bevel until it impacted the bottom edge of the LOW. I was then able to push the pile of metal off the bevel and over to the back side of the blade.
I put the tip of the Exacto knife where the red arrow is a pushed up the side of the bevel. You can see how the pile of LOW crud was pried from the side of the bevel and pushed over to the back side of the blade, exposing the true, nice and toothy edge it concealed.
If you don't know it's there, LOW is a problem because it can actually be sharpened to a very sharp edge, but it's crap metal, so you have to find a way to remove it. Because it's soft junk metal it's easy to get it really sharp and it can fool you into thinking you have a beautiful super sharp edge when really it's just sharpened crap on top of the actual hard edge of the blade.
Mr. Sharpco, these images were all taken with:
https://www.amazon.com/Celestron-Handhel...B00CMJ1I08