03-22-2018, 05:10 PM
OK we've rolled the Shun and due to popular demand we're going to post the results here. To make a long story short our new VG10 Shun rolled 232 points after one set. If you don't remember what a "set" is or the details of the test procedure refer back to our previous post #88 in a response to KG on the previous page.
So here is our new Shun knife. VG10 steel core and 60-61 HRC. Beautiful knife.
Nice Box Nice Knife Micro of steel laminations
So first we see how sharp it is right out of the box. And then after a little stropping
Then take a picture of the edge.
As you can see we have a microbevel here. They say the primary bevel is 16°. Don't know about the micro but assume perhaps 20°. Few visible scratches in the primary but the micro looks a bit on the toothy side. Now it's time to get rolling.
We performed one set initially and then measured.
That's 396. So we began at 164 and ended after one set at 396. 396 - 164 = 232. Now we want to see how far the edge will roll with our 150 gram load by performing additional sets. We've included the data from our Target puchased Henkel knife and B-50 cold rolled as well for comparison.
At the top of the column in parenthesis are the initial beginning sharpness values of the edges. As you can see the Shun and Henkel rolled very much the same during the early stages but the Shun pulled up about a hundred points shy of the
Henkel in total roll.
A couple of micro pictures taken edge-on of the rolled section and an adjacent straight section.
Taken within the test area section, here are near and far pictures of the Shun edge after testing was complete. Shun, in their instructions, seem very concerned with cutting activities that might chip their edge. As you can see, Structural Edge Tests didn't chip the edge.
Here's the best photo we could come up with showing the reflected light off the rolled edge section. Once again, the roll is substantial enough to easily hook a fingernail on.
So here is our new Shun knife. VG10 steel core and 60-61 HRC. Beautiful knife.
Nice Box Nice Knife Micro of steel laminations
So first we see how sharp it is right out of the box. And then after a little stropping
Then take a picture of the edge.
As you can see we have a microbevel here. They say the primary bevel is 16°. Don't know about the micro but assume perhaps 20°. Few visible scratches in the primary but the micro looks a bit on the toothy side. Now it's time to get rolling.
We performed one set initially and then measured.
That's 396. So we began at 164 and ended after one set at 396. 396 - 164 = 232. Now we want to see how far the edge will roll with our 150 gram load by performing additional sets. We've included the data from our Target puchased Henkel knife and B-50 cold rolled as well for comparison.
At the top of the column in parenthesis are the initial beginning sharpness values of the edges. As you can see the Shun and Henkel rolled very much the same during the early stages but the Shun pulled up about a hundred points shy of the
Henkel in total roll.
A couple of micro pictures taken edge-on of the rolled section and an adjacent straight section.
Taken within the test area section, here are near and far pictures of the Shun edge after testing was complete. Shun, in their instructions, seem very concerned with cutting activities that might chip their edge. As you can see, Structural Edge Tests didn't chip the edge.
Here's the best photo we could come up with showing the reflected light off the rolled edge section. Once again, the roll is substantial enough to easily hook a fingernail on.