I noticed this on the very first Delica that brought me into this forum, and it's present on every PE Spydie i have except my Centofante 4 which is a wharnie...so this has something to do with your typical PE blade. It's only present when i get up close to a polished bevel. I know someone is sure to blame this on my sharpening technique, but i just don't see how that could be since it's identical in every knife, almost exactly the same length and in the same spot, and only on the left side of the steel. So what's it from?
For the record i'm not complaining or anything...it's just an observation...doesn't bother me at all, i'm just curious if anyone knows what it's from and how it happens and if they've noticed it too. It's definitely something to do with the steel itself...because on my Para 2, i just put "my" bevel on it and polished it out, and it looks almost like a low spot in the steel that won't polish out, like maybe this is where part of the machine stamps out the blades and there's a very very light stamp mark in the steel in this area. It's very noticeable on my Delica with the big fat bevel, and not so much on my Caly 3. When the bevel is rough you can't see it. If you look close you can even see how the bevel is more polished just before the spot, and then not so polished going towards the handle.
Now that i think about it, it can't be a stamp park because i've taken off so much metal from the sides of that Delica, i would have honed it off by now. What else could it be? I refuse to believe this is my doing...lol. If it were, why isn't it on both sides?
No no no.....i'm talking about the vertical line that's about 1/2 inch from the tang/handle at the beginning of the bevel. I know about the Caly 3 line.
I added another pic circling what i'm talking about.
My guess is that it comes from polishing the face of the tang that is 90 degrees to the blade. That little flat part, best described as a "shelf." Maybe it comes from the side of a belt used to polish it?
I know it might look like flash glare or something on the edge bevels, but that's literally a line in the steel...it's hard to get a good picture of. It's in every steel i've used, VG10/S30V/ZDP.
gbelleh wrote:I just checked several of mine. From Golden, Japan, and Taiwan. S30V, ZDP, S90V, VG-10, 20CP, etc. I didn't see any such marks on any of them.
Are they factory edge or have you polished them out?
I've looked at my blades also and can't see anything. Have you looked under magnification? Even a loupe might shed some insight. It would be good to shed light on it even if it is a mark of your technique. I know you always keep your blades very sharp :)
Charlie
" Everything should be made as simple as possible, but not one bit simpler."
[CENTER]"Integrity is being good even if no one is watching"[/CENTER]
I've done the primary edge bevel with a DMT XXF on the D'fly, Delica's, Urban, Mules and a few others. I haven't polished the actual stock grind though.
Charlie
" Everything should be made as simple as possible, but not one bit simpler."
[CENTER]"Integrity is being good even if no one is watching"[/CENTER]
I have that on a couple of my knives and know exactly how I got mine. I was sharpening with the sharpmaker and wasn't quite hitting all the way back on the blade, so I ran just the back part down the flats of the stone a few times on each side. My marks are exactly the same width as the stones. You should check and see if yours are too. I had a hard time getting my lines to show up in a picture, but kind of got it here.
Many of mine are the same way. Sometimes I think it is a difference in the density of the steel or grain or something. That would make the steel reflect light a little differently, maybe.
But, if I were to say that all of them were knives I sharpened on the SM, you'd note that the width of the mark to the back of the edge and the width of the SM rod is very similar.
I could be wrong, but looking closely at the pics, it looks like the mark starts just below what would be the factory bevel. Which would lead me to suspect sharpening technique.
Just the act of putting blade against rod results in friction which results in the rod doing its thing. I don't think I can can do it fast enough to keep it from touching longer in that one spot.
gbelleh wrote:I could be wrong, but looking closely at the pics, it looks like the mark starts just below what would be the factory bevel. Which would lead me to suspect sharpening technique.
That's what I was thinking. They all look pretty heavily sharpened and it looks like a difference in sharpening patterns. How are you sharpening the knives?
I know for me it is very difficult to sharpen the butt end of the blade. When you are using the flats, it is very easy to have the blade at the wrong angle and only have the blade hitting the near or far corner of the stone.
-Brian A distinguished lurker.
Waiting on a Squeak and Pingo with a Split Spring!
I do have a mark on my blades, but it is closer to the handle than your line. I think it is because I try to work this area of my blade more. Where my edge is polished I don't see any marks.
-Brian A distinguished lurker.
Waiting on a Squeak and Pingo with a Split Spring!
You may not want to accept that it is your technique, but I've seen a line just like that halfway down the right side of my blades about five thousand times, and I sharpen freehand on benchstones. The line never appears on the left side of mine, and if I slow way down and concentrate hard while I sharpen, it goes away for a while, but if I get in a hurry, it reappears. It is something in my wrist that catches when I'm going right to left on the stone.
I don't believe in safe queens, only in pre-need replacements.
