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#91
Knife Sharpening / Re: Paper Wheels
Last post by kwakster - July 21, 2026, 05:27:35 PMBelow you see 3 different viewing angles of the edge i recently put on a brand new Sebenza 25 (which had a subpar factory edge)
The owner of the knife took the pictures with a very expensive Leica camera to capture the different looks this edge type can have when seen from different angles.
For obvious reasons i named this a bling & bite finish, and it performs very well on especially high (vanadium) carbide steels.
I first reprofiled the factory edge from 35 degrees inclusive to 30 degrees inclusive with a Rubber Wheel coated with 230 grit diamond powder, then refined it with a Paper Wheel coated with 15 micron diamond compound, and lastly removed the tiny burr with a second Paper Wheel coated with 0.25 micron diamond compound.
The new and ever so slightly convex edge could treetop the hair on the back of my hand (even whittle it a bit) and easily slice single ply toilet paper.
And this was after i tested the edge with a few firm cuts into the edge of a piece of laminated desktop.
The owner of the knife took the pictures with a very expensive Leica camera to capture the different looks this edge type can have when seen from different angles.
For obvious reasons i named this a bling & bite finish, and it performs very well on especially high (vanadium) carbide steels.
I first reprofiled the factory edge from 35 degrees inclusive to 30 degrees inclusive with a Rubber Wheel coated with 230 grit diamond powder, then refined it with a Paper Wheel coated with 15 micron diamond compound, and lastly removed the tiny burr with a second Paper Wheel coated with 0.25 micron diamond compound.
The new and ever so slightly convex edge could treetop the hair on the back of my hand (even whittle it a bit) and easily slice single ply toilet paper.
And this was after i tested the edge with a few firm cuts into the edge of a piece of laminated desktop.
#92
Knife Sharpening / Re: Paper Wheels
Last post by kwakster - July 21, 2026, 05:26:18 PMDid these chisel ground edges a a few years ago with a Paper Wheel coated with 15 micron diamond compound, and then stropped the burr on the other side off on hard leather with some 1 micron diamond compound.
Both knives were quite blunt, one even more than the other.
The knives are owned by two Dutch Special Forces guys who used & sharpened them while on tour in Afghanistan, and they wanted the new edges to have a little bling.
Both knives were quite blunt, one even more than the other.
The knives are owned by two Dutch Special Forces guys who used & sharpened them while on tour in Afghanistan, and they wanted the new edges to have a little bling.
#93
Knife Sharpening / Re: Paper Wheels
Last post by kwakster - July 21, 2026, 05:25:20 PMHere's one i did a few days ago, a Spyderco Paramilitary 2 in Elmax steel.
The factory edge had some light brown discoloration near the tip on one side, traces of some unknown black stuff that couldn't even be removed with acetone (visible in pic 1 & 3), and it could also barely cut copypaper.
This is how it looked before sharpening:
First i removed the apex of the old edge by cutting a few times in a silicon carbide stone, then resharpened it with a Paper Wheel coated with 15 micron diamond compound, followed by removing the tiny burr with a second Paper Wheel coated with 1 micron diamond compound.
This time i also polished the bevels a bit more with the same Wheel, just to see how the Elmax would do.
According to my Tormek angle gauge the new edge measures 30 degrees inclusive, can slice single ply toilet paper and easily whittle the hairs on the back of my hand from heel to tip.
The factory edge had some light brown discoloration near the tip on one side, traces of some unknown black stuff that couldn't even be removed with acetone (visible in pic 1 & 3), and it could also barely cut copypaper.
This is how it looked before sharpening:
First i removed the apex of the old edge by cutting a few times in a silicon carbide stone, then resharpened it with a Paper Wheel coated with 15 micron diamond compound, followed by removing the tiny burr with a second Paper Wheel coated with 1 micron diamond compound.
This time i also polished the bevels a bit more with the same Wheel, just to see how the Elmax would do.
According to my Tormek angle gauge the new edge measures 30 degrees inclusive, can slice single ply toilet paper and easily whittle the hairs on the back of my hand from heel to tip.
#94
Knife Sharpening / Re: Paper Wheels
Last post by kwakster - July 20, 2026, 05:15:53 PMThe factory edge of this Spyderco PM2 in S110V steel was barely shaving armhair on skinlevel, and according to my Tormek WM200 the edge angle was near 35 degrees inclusive.
The old apex was removed by cutting several times straight into a silicon carbide stone, and then i used 4 different Paper Wheels coated with diamond compounds (15, 6, 3, and 1 micron) to create & refine the new edge.
Normally i don't take high carbide steel types this far, but in this case i wanted to see how the S110V steel would do.
The new & ever so slightly convex edge measures a hair below 30 degrees inclusive, and can easily whittle a normal chest hair towards the point along the entire edge.
Thinner ones will sever immediately upon touching.
My cheap camera is not really able to show full details, but at least it gives some impression.
A Belgian member of the Dutch forum who's also into sharpening sent me a USB-camera as a gift, and although i still have lots to learn about what it can do i managed to take a couple of pics of the current edge on the PM2 in S110V steel:
The old apex was removed by cutting several times straight into a silicon carbide stone, and then i used 4 different Paper Wheels coated with diamond compounds (15, 6, 3, and 1 micron) to create & refine the new edge.
Normally i don't take high carbide steel types this far, but in this case i wanted to see how the S110V steel would do.
The new & ever so slightly convex edge measures a hair below 30 degrees inclusive, and can easily whittle a normal chest hair towards the point along the entire edge.
Thinner ones will sever immediately upon touching.
My cheap camera is not really able to show full details, but at least it gives some impression.
A Belgian member of the Dutch forum who's also into sharpening sent me a USB-camera as a gift, and although i still have lots to learn about what it can do i managed to take a couple of pics of the current edge on the PM2 in S110V steel:
#95
Knife Sharpening / Re: Use of KS-123 with adjusta...
Last post by Dutchman - July 20, 2026, 11:51:33 AM@CBWX34
Thanks for your contribution
I have updated the link to the US version
Thanks for your contribution
I have updated the link to the US version
Quote from: cbwx34 on July 19, 2026, 11:10:49 PM...Due to the curved cutting edge, the protrusion would then not match the value for the position where the knife is clamped.
Why are you resting the stop against the clamp and not the USB (like you do when using the KJ jig?)
#96
Knife Sharpening / Re: Paper Wheels
Last post by kwakster - July 20, 2026, 11:04:14 AMA few weeks ago a knife collector asked me if i could sharpen the false edge on a Gerber Applegate Fairbairn folder.
On this knife the blade is completely shrouded by the handle when closed, so there is no risk of injury while carrying it.
The owner also wanted the new bevels to be a bit shiny.
This older YouTube clip by Nutnfancy showcases this mod:
https://www.youtube.com/watch?v=oR984DMcQ1o
This was the knife before sharpening:
And the result.
Ground the new bevels with a Rubber Wheel coated with 230 grit diamond powder, then refined all bevels with a Paper Wheel coated with 15 micron diamond compound, and finally removed the tiny burr remnants with the Tormek leather wheel & some 1 micron diamond compound.
The edges measure 35 degrees inclusive and are treetopping sharp.
On this knife the blade is completely shrouded by the handle when closed, so there is no risk of injury while carrying it.
The owner also wanted the new bevels to be a bit shiny.
This older YouTube clip by Nutnfancy showcases this mod:
https://www.youtube.com/watch?v=oR984DMcQ1o
This was the knife before sharpening:
And the result.
Ground the new bevels with a Rubber Wheel coated with 230 grit diamond powder, then refined all bevels with a Paper Wheel coated with 15 micron diamond compound, and finally removed the tiny burr remnants with the Tormek leather wheel & some 1 micron diamond compound.
The edges measure 35 degrees inclusive and are treetopping sharp.
#97
Knife Sharpening / Re: Paper Wheels
Last post by kwakster - July 20, 2026, 11:02:14 AMThis brand new Endura ZDP-189 sadly had a less than optimal factory edge, and since this beautiful steel deserves better i reprofiled & sharpened it myself.
My guess is that these knives are belt sharpened and then have the burr stropped of on a buffer.
On this knife however it seemed like the buffer ran out of cutting compound (or the sharpener just did a sloppy job), as through my loupe i could see remains of a burr almost along the entire edge. (some of it is partly visible in picture 2)
Due to this the sharpness was of course severely lacking.
I also measured the edge angle to be 35 degrees inclusive, which i think is a bit too large for a folding knife in ZDP-189 steel.
Before sharpening:
First i removed the old apex by cutting a few times straight into a silicon carbide stone, then reprofiled the edge to a slightly convex ~ 25 degrees inclusive angle with a Paper Wheel coated with 15 micron diamond compound, and then removed the tiny burr with a second Paper Wheel coated with 0.25 micron diamond compound.
This leaves the scratch pattern created by the 15 micron diamond particles intact as much as possible, creating an edge that with the naked eye almost looks like a mirror, but which has the bite of a coarser edge.
I call this a "bling & bite" finish, and i have found it to work very well in EDC use on harder high carbide steel types.
It's also quite difficult to show correctly in pictures, as the lens of my cheap camera has a tendency to show more of the scratch pattern than can be seen in reality with the naked eye.
With the reduced edge angle & the much finer edge finish the knife will not only cut in a completely different league, it can now also be kept sharp on the 30 degrees slots of a Spyderco Sharpmaker or Lansky Turnbox.
After sharpening:
My guess is that these knives are belt sharpened and then have the burr stropped of on a buffer.
On this knife however it seemed like the buffer ran out of cutting compound (or the sharpener just did a sloppy job), as through my loupe i could see remains of a burr almost along the entire edge. (some of it is partly visible in picture 2)
Due to this the sharpness was of course severely lacking.
I also measured the edge angle to be 35 degrees inclusive, which i think is a bit too large for a folding knife in ZDP-189 steel.
Before sharpening:
First i removed the old apex by cutting a few times straight into a silicon carbide stone, then reprofiled the edge to a slightly convex ~ 25 degrees inclusive angle with a Paper Wheel coated with 15 micron diamond compound, and then removed the tiny burr with a second Paper Wheel coated with 0.25 micron diamond compound.
This leaves the scratch pattern created by the 15 micron diamond particles intact as much as possible, creating an edge that with the naked eye almost looks like a mirror, but which has the bite of a coarser edge.
I call this a "bling & bite" finish, and i have found it to work very well in EDC use on harder high carbide steel types.
It's also quite difficult to show correctly in pictures, as the lens of my cheap camera has a tendency to show more of the scratch pattern than can be seen in reality with the naked eye.
With the reduced edge angle & the much finer edge finish the knife will not only cut in a completely different league, it can now also be kept sharp on the 30 degrees slots of a Spyderco Sharpmaker or Lansky Turnbox.
After sharpening:
#98
Knife Sharpening / Re: Paper Wheels
Last post by kwakster - July 20, 2026, 10:56:19 AMA while ago i sharpened this Buck Hartsook in S30V steel for a Dutch forum member:
The edge was done on Paper Wheels with diamond compounds exclusively, and the new & slightly convex edge measures ~30 degrees inclusive.
Remarkably useful little knives with well hardened S30V steel.
The edge was done on Paper Wheels with diamond compounds exclusively, and the new & slightly convex edge measures ~30 degrees inclusive.
Remarkably useful little knives with well hardened S30V steel.
#99
Knife Sharpening / Re: Paper Wheels
Last post by kwakster - July 20, 2026, 10:54:01 AMSome time ago i did this rather large Strider fixed blade in S30V steel for a Dutch forum member.
According to my Tormek angle gauge the factory edge measured 50 to 55 degrees inclusive and it wasn't very sharp either.
Grit progression: reprofiled on a standard Paper Wheel with 220 grit SiC, refined it a little with a second Paper Wheel coated with 15 micron diamond compound, and finally removed the tiny burr with a third Paper Wheel coated with 0,25 micron diamond compound.
The new & slightly convex edge measures around 35/36 degrees inclusive, and can both slice single layer toilet paper and treetop the hairs on the back of my hand.
According to my Tormek angle gauge the factory edge measured 50 to 55 degrees inclusive and it wasn't very sharp either.
Grit progression: reprofiled on a standard Paper Wheel with 220 grit SiC, refined it a little with a second Paper Wheel coated with 15 micron diamond compound, and finally removed the tiny burr with a third Paper Wheel coated with 0,25 micron diamond compound.
The new & slightly convex edge measures around 35/36 degrees inclusive, and can both slice single layer toilet paper and treetop the hairs on the back of my hand.
#100
Knife Sharpening / Re: Paper Wheels
Last post by Rossy66 - July 20, 2026, 02:45:40 AMThanks for the reply. The spyderco looks amazing.