Yeah Mr. Mark, I did that when I was trying to figure out exactly what I was looking at under the scope. The base of the burr looks like a bulbous lump but I was not sure. So I did the Exacto knife thing and sure enough I could feel resistance when the the tip butted up against that cud and when I pushed it tore it off the edge and pushed it over to the other side of the bevel. I took an image of it and it looked exactly like the third picture... (more shortly).
That was when I realized LOW is actually what it looks like and not just some strange light reflection caused by scope lighting. It's actually a lump of crud, and it's stuck there pretty firmly. It's not like it's actually welded on, but it's stuck well enough that you must actually be able to grab on to it, or hook it to pry it off.
It's very similar to a bead of glue stuck to the side of a blade. It's stuck well enough so it can actually be worn down, polished and shaped by smooth things, but when a razor blade or screwdriver blade is pushed against the side of it the thing will just pop off.
There are two ways to remove it; grind it away, or find something to grab onto it and break it off. As you say fine abrasives work but they smooth tooth. I wanted to preserve the beautiful toothy edge so I went in search of something that could grab onto that crap and break it from the edge but not smooth the toothy edge.
I tried just about every surface I could find; hard / soft rubber, Formica, thermoplastic, sandpaper, wood and many other stuffs. Lots of different stuff. Nothing worked. I had about given up when I spied a well worn very fine Scotch-Brite belt hanging on my belt hanging thing.
So by hand, using light moderate pressure I dragged the blade for about an inch or two over the belt and took a picture of it. To my surprise it worked. That Scotch-Brite surface grabbed the LOW and broke it off but didn't remove any of the wonderful toothiness. Looking at the third image again I see diagonal scratching on the bevel that is not present on the part that is not deburred. Because of that scratching, I now think that image may from the Scotch-Brite rather than the Exacto. It makes little difference as the results were the same. I didn't mean to misrepresent what the picture actually was, but apparently I didn't find the one I did with the Exacto blade in the hundreds of blade images I have. But like I said it makes little difference. It was, after all, using the Exacto blade test that demonstrated exactly what LOW is and why I went on a search to find something that could duplicate what it did and pop that LOW junk off the edge. If I can find the actual Exacto image I'll post it, but it looks just like the one posted only without the scratching of the bevel below the burr.
Now I always do preliminary deburring with a well worn very fine Scotch-Brite to bust the LOW and then switch to leather. But, deburring with Scotch-Brite is sort of a learned thing. A too new belt, or to coarse a belt, or too much pressure or time spent will quickly mangle the edge . It takes a bit of practice to figure it out, but when it works it's amazing, and best of all, it preserves tooth.
That was when I realized LOW is actually what it looks like and not just some strange light reflection caused by scope lighting. It's actually a lump of crud, and it's stuck there pretty firmly. It's not like it's actually welded on, but it's stuck well enough that you must actually be able to grab on to it, or hook it to pry it off.
It's very similar to a bead of glue stuck to the side of a blade. It's stuck well enough so it can actually be worn down, polished and shaped by smooth things, but when a razor blade or screwdriver blade is pushed against the side of it the thing will just pop off.
There are two ways to remove it; grind it away, or find something to grab onto it and break it off. As you say fine abrasives work but they smooth tooth. I wanted to preserve the beautiful toothy edge so I went in search of something that could grab onto that crap and break it from the edge but not smooth the toothy edge.
I tried just about every surface I could find; hard / soft rubber, Formica, thermoplastic, sandpaper, wood and many other stuffs. Lots of different stuff. Nothing worked. I had about given up when I spied a well worn very fine Scotch-Brite belt hanging on my belt hanging thing.
So by hand, using light moderate pressure I dragged the blade for about an inch or two over the belt and took a picture of it. To my surprise it worked. That Scotch-Brite surface grabbed the LOW and broke it off but didn't remove any of the wonderful toothiness. Looking at the third image again I see diagonal scratching on the bevel that is not present on the part that is not deburred. Because of that scratching, I now think that image may from the Scotch-Brite rather than the Exacto. It makes little difference as the results were the same. I didn't mean to misrepresent what the picture actually was, but apparently I didn't find the one I did with the Exacto blade in the hundreds of blade images I have. But like I said it makes little difference. It was, after all, using the Exacto blade test that demonstrated exactly what LOW is and why I went on a search to find something that could duplicate what it did and pop that LOW junk off the edge. If I can find the actual Exacto image I'll post it, but it looks just like the one posted only without the scratching of the bevel below the burr.
Now I always do preliminary deburring with a well worn very fine Scotch-Brite to bust the LOW and then switch to leather. But, deburring with Scotch-Brite is sort of a learned thing. A too new belt, or to coarse a belt, or too much pressure or time spent will quickly mangle the edge . It takes a bit of practice to figure it out, but when it works it's amazing, and best of all, it preserves tooth.