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Well over 30 knives using the CBN stones. 30V, 35V, 90V, 110V, 4V, M4, M390.... The 110V and M4 are my knives, sharpened them a few different ways. The more I use the CBN stones, the more I like them. They do a fantastic job on the "Super" steels. The stones don't clog or build up, great feel....

https://www.practicalsharpening.com/edge-pro/

Getting great cutting results with a simple polished toothy edge. 300 grit, 700 grit then .25 diamond emulsion on a Nano cloth strop. Really like this edge on these steels. On my M4 have stropped it to .025, silly fine edge. BUT, I know that very fine edge is going away fast. Still fun!

Mentioned in a above post I geeked out and ordered some Rizla+ cigarette paper for a standard test media. About out of arm hair! Learned about using the paper here.

http://knifegrinders.com.au/Ma.../Sharpness_Chart.pdf

Long Push cut I believe is plenty sharp for a "working" knife, EDC or kitchen, easy shaving sharp. Both my knives in 110V and M4 will easily long cut with a simple 300/700/.25 strop edge. You know I'm going to try the cross cut! Three knives have passed that with just a smidge of tear. My favorite knife, our 210MM Gyuto freshly sharpened, my Spyderco PM2 in M4 and one that surprised me a Zero Tolerance 0770CF in 35V.



The PM2's sure have a heck of a point on them, challenge to keep it.....
 
Posts: 2593 | Location: 9860 ft above sea level Colorado | Registered: December 31, 2008Reply With QuoteReport This Post
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Well over 50 knives now with the CBN stones. Couldn't be happier with how they cut. Just sharpened this Spyderco Native LW 5 in Maxamet. I've read Maxamet could be tough to sharpen, I didn't find that the case with the CBN stones. I'll put it up there with M4 how easily it took a keen edge. Sharpened it at 32 degrees, 300, 700 grit, 1 micron diamond emulsion kangaroo strop and a few passes with .25 micron. Was careful not to form much of a burr. This edge has plenty of bite and will push cut with ease. Passed the cross cut paper test, very sharp with a simple edge. One of the kings of edge retention down, will be sharpening a Creely Mako in Rex 121 soon.


This edge is holding up very well. Makes me want a PM2 in Maxamet thinned out!

http://sigforum.com/eve/forums...0601935/m/2920077254
 
Posts: 2593 | Location: 9860 ft above sea level Colorado | Registered: December 31, 2008Reply With QuoteReport This Post
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Sharpened this PM2 in M4 today. M4 is my favorite steel to sharpen, relatively easy to sharpen, takes a very fine edge.

30 degrees, 300, 700, 1500 CBN stones, Spyderco Ceramic Ultra Fine, dozen or so passes with .010 micron kangaroo strop. Very sharp, passes the cross cut test. The Spyderco UF does a great job as polishing stone.

 
Posts: 2593 | Location: 9860 ft above sea level Colorado | Registered: December 31, 2008Reply With QuoteReport This Post
Still finding my way
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That's a beautiful edge you put on that blade offgrid.
 
Posts: 8025 | Registered: January 04, 2009Reply With QuoteReport This Post
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Picked up a Spyerdco PM2 in Maxamet. Factory edge was just OK. Give it a 5/10. Gotta touch it up! Matched the factory edge of 34 degrees. Factory scratch pattern was equivalent to my 300 grit CBN stone. Started with 300 grit creating a very thin burr, flipped it over moved the burr to other side. Then 700 grit CBN followed by a 1 micron kangaroo strop, just a few very light passes. It's very sharp with some bite, substantially sharper then the factory edge. I find with the CBN stones Maxamet is very easy/quick to sharpen. I'm liking this steel. I'll EDC the Maxamet until it shows signs of losing the edge, might take awhile! Then I'll touch it and my PM2 in S110V up and do a edge retention test. Fun stuff!
 
Posts: 2593 | Location: 9860 ft above sea level Colorado | Registered: December 31, 2008Reply With QuoteReport This Post
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Offgrid, I just ordered a couple of the CBN stones after reading your reviews several times. Looking forward to seeing how well they work! Thanks for your reviews even if they cost me a few hundred! LOL

Have you ever tried any of the less expensive organic bonded versions? I went with the metallic bonded ones - in for a penny in for a pound but did wonder about the differences between them.......dj


Remember, this is all supposed to be for fun...................
 
Posts: 3753 | Registered: April 06, 2007Reply With QuoteReport This Post
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Originally posted by djpaintles:
Offgrid, I just ordered a couple of the CBN stones after reading your reviews several times. Looking forward to seeing how well they work! Thanks for your reviews even if they cost me a few hundred! LOL

Have you ever tried any of the less expensive organic bonded versions? I went with the metallic bonded ones - in for a penny in for a pound but did wonder about the differences between them.......dj


Cool! What grit stones? Steels you’re going to be sharpeneing?

I have not tried any of the other bonded stones.
 
Posts: 2593 | Location: 9860 ft above sea level Colorado | Registered: December 31, 2008Reply With QuoteReport This Post
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quote:
Originally posted by offgrid:
quote:
Originally posted by djpaintles:
Offgrid, I just ordered a couple of the CBN stones after reading your reviews several times. Looking forward to seeing how well they work! Thanks for your reviews even if they cost me a few hundred! LOL

Have you ever tried any of the less expensive organic bonded versions? I went with the metallic bonded ones - in for a penny in for a pound but did wonder about the differences between them.......dj


Cool! What grit stones? Steels you’re going to be sharpeneing?

I have not tried any of the other bonded stones.


I ordered the 400,1000,4000, and 8000grit metallic bonded stones for the Edgepro. I have a couple S90V knives a S110V Spyderco Military, several ZDP-189 knives, and various others.

My current favs on the Edgepro are the Shapton Glass stone set. It might be interesting to see the differences in them. I suspect the the Shaptons might still see a lot of use for less complex steels and the CBN's for more complex steels with a lot of carbides but we'll see. My Microscope is quite powerful enough to see the actual carbides in the edges like the pics in your links were but I might still be able to get a good comparison.

All in all another expensive but potentially very useful and fun experiment in sharpening! :-)

I also order a couple of the Venev Diamond stones, Diamond stones aren't my favorite but I'm intrigued about the advantages of a bonded diamond stone vs a coated one.

We'll see about the cigarette paper later! ;-D


Remember, this is all supposed to be for fun...................
 
Posts: 3753 | Registered: April 06, 2007Reply With QuoteReport This Post
Throwin sparks
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Following!!
 
Posts: 5371 | Location: Nashville Tn | Registered: October 12, 2008Reply With QuoteReport This Post
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Sharpened my first blade with the CBN edge pro stones. The 400 stone was a little too slow to set the edge on my S90V Spyderco Military so I reset the bevel with an Aotama Diamond stone which is FAST but leaves some nasty scratches. I got down to a very sharp edge but which still had to many scratches in the pattern and not a mirrored edge like I expected. I thought it was due to the Aotama but it turned out that the edges of the CBN stones were too sharp and were causing the extra scratches. I knocked off the edges or the stones with a little diamond plate and started over. The stones were just GREAT! One of the sharpest edges I've ever done. I had to be extra careful in my normal "Murray Carter" style 3 fingers and a thumb grabbiness test, I could barely touch the edge without it digging into my fingers. Of course it glided through magazine paper and popped hair without touching skin. It's sometimes hard to describe exactly how keen an edge is but this one was as good as I've ever done and was the first blade I've done with the CBN stones. So first impression is very expensive but awesome stones.

I also REALLY liked the Venev diamond stones. IMHO EVERYBODY should at least try the little pocket stone! Amazon carries them for less than $10 and it should be a no brainer to try one and then have it for your field kit. MUCH the best diamond stones I've ever used. They feel much more like a regular water stone than any of the coated technology diamonds I've ever used (and I've tried most). I was extremely impressed. Do yourself a favor and at least try the little $9.60 pocket stone from Amazon.

https://www.amazon.com/Pocket-...292&s=gateway&sr=8-1

Let me know if you disagree with me. :-)


I can't wait for them to get the finer grit pocket stones back in!


Remember, this is all supposed to be for fun...................
 
Posts: 3753 | Registered: April 06, 2007Reply With QuoteReport This Post
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Originally posted by djpaintles:
Sharpened my first blade with the CBN edge pro stones. The 400 stone was a little too slow to set the edge on my S90V Spyderco Military so I reset the bevel with an Aotama Diamond stone which is FAST but leaves some nasty scratches. I got down to a very sharp edge but which still had to many scratches in the pattern and not a mirrored edge like I expected. I thought it was due to the Aotama but it turned out that the edges of the CBN stones were too sharp and were causing the extra scratches. I knocked off the edges or the stones with a little diamond plate and started over. The stones were just GREAT! One of the sharpest edges I've ever done. I had to be extra careful in my normal "Murray Carter" style 3 fingers and a thumb grabbiness test, I could barely touch the edge without it digging into my fingers. Of course it glided through magazine paper and popped hair without touching skin. It's sometimes hard to describe exactly how keen an edge is but this one was as good as I've ever done and was the first blade I've done with the CBN stones. So first impression is very expensive but awesome stones.

I also REALLY liked the Venev diamond stones. IMHO EVERYBODY should at least try the little pocket stone! Amazon carries them for less than $10 and it should be a no brainer to try one and then have it for your field kit. MUCH the best diamond stones I've ever used. They feel much more like a regular water stone than any of the coated technology diamonds I've ever used (and I've tried most). I was extremely impressed. Do yourself a favor and at least try the little $9.60 pocket stone from Amazon.

https://www.amazon.com/Pocket-...292&s=gateway&sr=8-1

Let me know if you disagree with me. :-)


I can't wait for them to get the finer grit pocket stones back in!


My experience with the Atoma 400 grit vs CBN 300. CBN cut faster/digs in and better feel. I don't care for the Atoma stone other then using it to flatten Shapton/Chosera stones.

Before sharpening these steels I certainly was in the polished edge camp, no longer. I like the edge of a 300/700/few light passes with 1 micron strop. I'll still sharpen to a polished mirror edge for friends, that's fun. For my own knives and how I use them prefer the performance of the toothy/stropped edge. Suggest to try finishing with with a strop/1 micron and maybe picking up a 150-200 grit CBN stone if you want faster removal when re-profiling an edge.

Order the Green Rizla+ cigarette papers so were comparing same test cut media!! Keep you from shaving all the hair off your arms! Length cut test I believe is a good edge for EDC and a reasonable place to stop.
 
Posts: 2593 | Location: 9860 ft above sea level Colorado | Registered: December 31, 2008Reply With QuoteReport This Post
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