Mirror polished edges sharpened by myselfKitchen Heros
Here it is in it's original state. The edge itself had nice satin finish originally and was rather convex. After I've sharpened it several time using the same mousepad/sandpaper method (to be precise mousepad and abrasive films for last year) it acquired mirror polished convex edge. As for its sharpness, well it's a match for the looks. You wouldn't say that looking at those pictures anyway. It's hard to tell from the pictures, but the yellowish part of the edge is the satin finish, and the lighter part, which looks more scratched is the mirror polished convex section. Coloring is different because the difference in light reflecting properties of two different sections of the steel. For this picture I was using natural light. Magnification for both of them is ~32x. In other words those are 1024x768 crops from the original image of 3072x2048 size. D2 steel blade, sharpened first with edge pro to 15 degree edge per side, making 30° included. Later the usual maintenance with abrasive films, 5µm SiC and then 0.3µm Al2O3. To see how this blade looks in real life check out this picture. As you can see it is mirror polished, gleaming sharp and all that. Now let's take a closer look.
kitchen knife reviews). this is the photo depicting TTKK in its original working condition.
As I've mentioned few times, in that period(2004-2008) I don't have mirror polished edges on kitchen knives, so TTKK had the edge finished at 600 grit sandpaper all the time. Unfortunately I don't have magnified picture of that. Later, once I started experimenting with macros I decided to study edge degradation in the kitchen and TTKK was the subject. Results of that study are yet to be published here, but for starters I resharpened TTKK to 15° angle edge (per side) and mirror polished it using Edge-Pro Apex sharpening system, then I've used 0.3µm Al2O3 to finish it, and convex the edge as well. The result is top picture in the stack on the left. I'd say pretty clearly mirror polished, relatively thin edge.
And the next two pictures show the close up with 32x magnification. By know, you already know it's gonna look scary :) But not too scary for some reason. Second picture, or in other words first macro view shows mid section of the TTKK. As you can see mostly it's pretty smooth, I mean the edge. However satin finish on the blade does look rough, especially compared to Lochsa blade, which is also satin, but the difference is visible with naked eye as well. As for the TTKK edge you can clearly see scratches from Edge Pro rough stone at the edge base, which demonstrates why you should cover the blade with painters tape prior to using edge pro :) That is in case if you mind those scratches. The edge itself does have lots of scratches as well. Those are not easily visible with naked eye though. Still, closer to the right, you can see where I applied excessive pressure on edge pro 120 grit stone the scratches formed too deep and later higher grits were unable to polish them out. Another point, don't use too much pressure when sharpening, especially with rough stones. And finally we see the convex formed by 0.3µm Al2O3 abrasive, that's the darker line marked with two red arrows.
And the last picture, the third one in the stack, shows the TTKK blade tip. This looks rougher than the mid section. Again, that's because of high pressure when using edge pro, low grit stone. All in all, this is a good illustration of what excessive pressure can do to the edge, even if you don't see it with naked eye. Because those rough spots do matter when cutting and especially chopping. Less likely I'll have to chop with TTKK anything significant (if anything at all) having over a dozen Kukris and dozens of large field knives, but still, if you want fine, nicely polished edge, light pressure at all grits is the key.