Who wants to speculate

Kitchen Knife Forums

Help Support Kitchen Knife Forums:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Barmoley

Barmoley

Rant specialist extraordinaire
KKF Supporting Member
Joined
Aug 12, 2016
Messages
4,078
Reaction score
7,711
Location
USA
https://www.knifecenter.com/item/SP...oron-nitride-bench-stone-sharpener-3-x-8-inch
So this looks cool to me because Spyderco usually makes good stuff and I've been wanting to try CBN stones for a while, but they were either not available or very expensive. I have a set of vitrified diamond stones that I am very happy with, but this looks like it could be a good, reasonably cheap option.

In any case what are the opinions of the collective?
 
Assuming mesh in this case translates to JIS 1:1 it is not the grits I am after. I would love to try it in something like 200/800 and 2000/5000.
But great for spyderco, and the price is very reasonable. Hopefully they will make more grits/mesh available.
 
Ruso said:
Assuming mesh in this case translates to JIS 1:1 it is not the grits I am after. I would love to try it in something like 200/800 and 2000/5000.
But great for spyderco, and the price is very reasonable. Hopefully they will make more grits/mesh available.
Click to expand...
I want more grits too, but 400/800 assuming JIS 1:1 is a reasonable first offer. I wonder how it will feel and how durable, long lasting it will be. They have a history of making CBN rods for the sharpmaker, so they are not new to it. Bench stone might be different though.
 
Could be good for fast removal. From the website description:

this stone is also the perfect choice for sharpening wood chisels, plane irons, and similar tools
Click to expand...

If you don't have a grinding wheel. Regrinding plane irons and larger chisels is laborious work. Maybe thats their market?

Interesting item! I'd be keen to hear more community wisdom...
 
Might be a good thinning stone, no idea how to flatten this, if it needs that.

Edit: "perfectly flat carbon steel embryo of this stone is coated with fast-cutting 400-mesh CBN on one side and finer 800-mesh CBN on the other" so no thinning needed, a diamond plate replacement.
 
Talked to some very knowledgeable people and so far the consensus is that it is a product similar to DMT plates. If true won't need flattening but also will feel pretty bad and will be done once the CBN is worn off.
 
Kippington said:
I've used CBN compound for stropping and found it to be crap compared to diamonds, but I guess that's a totally different from a stone.
Click to expand...
I’ve heard really good things about vitrified and bonded CBN stones, but they are rare and expensive and also different from this Spyderco product.
 
Barmoley said:
Talked to some very knowledgeable people and so far the consensus is that it is a product similar to DMT plates. If true won't need flattening but also will feel pretty bad and will be done once the CBN is worn off.
Click to expand...

Or more like a vitrified diamond stone?
 
Ahhh.... That wouldnt feel particularly nice!

Probably not much of an advantage on simpler steels (other than flatness). Could be good for high hardness, high-wear resistant steels (e.g. Rex 121).
 
If they ever do lower grits of these with lower price accordingly, perhaps it could compete well with an Atoma for flattening stones, too. I'd like to see that.
 
Sounds like there are different types of CBN, so the experience might depend on which type you got, unfortunately it doesn't seem like you can tell what you get, so buying from a reputable source is the way to go. Also, looks like one of the benefits of platted CBN vs platted diamond might be that CBN adheres better to the metal plate and so doesn't get ruined as much by people using too much pressure. Apparently, this is how most diamond plates get ruined, by too much pressure when sharpening.
 
lowercasebill said:
It was an amazon link that failed. Go to amazon search cbn comes from Russia, .5 micron $17 USD
Click to expand...
Good CBN stones from Russia/Ukraine are quite expensive. Usually fair amount more expensive than diamond stones. I am talking abt stones here, not plates though.
 
Ruso said:
Good CBN stones from Russia/Ukraine are quite expensive. Usually fair amount more expensive than diamond stones. I am talking abt stones here, not plates though.
Click to expand...
Any links to these, very curious about bonded CBN stones. I am very happy with vitrified diamond stones, bit still curious.
 
Well it all looks written up nicely but I really don't think it will be something exciting. Looks like a smart marketing move from spyderco. Cbn must be beter right? In most cases- yes. In that particular one- not really. Now let's look into the dry facts that we as sharpeners shouldn't even care about. Yes, cbn has a way higher hardness and thermal conductivity than alox or SiC, but diamond has a significantly higher hardness and thermal conductivity than cbn. If we would compare purest and strongest cbn and diamond grades. Diamond would be roughly 30% harder with almost double thermal conductivity. Cbn has higher thermal resistance tho. Again nothing that should really matter to us in this particular case. I really don't see any benefits of mono layer cbn over diamond. Technically, cbn should have a bit more predictable scratch pattern but It all depends on the general quality of the plate. My guess would be that you won't be able to tell the difference.
 
You must log in or register to reply here.

Latest posts

Back
Top