Spyderco Ultra Fine stone: Dry, Water, or Oil?

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Mr.Wizard said:
Mossyhorn Mossyhorn
As FortyTwoBlades clarifies above "Use oil one time and it's an oil stone" doesn't apply to nonporous stones, and if it did you could still use one side with oil and the other side dry.

India stones are in a totally different grit range and are not interchangeable with sintered ceramic.

Cutting fluid is not only for cooling but also lubrication, and this applies to manual grinding too as others have stated in this thread, and elsewhere e.g.
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Quit tagging me. I do not agree with your assesrtations. I've got a long history of grinding and as a prototype machinist. I also have tool grinding experience. India stones are not ceramic, yeah that was obvious in my post. You need to read more and post less.

Ceramic stones do not require any lubrication. I stand by that .
 
Lol. I was a machinist and toolmaker for more than 20 years. In my experience, Mr. Wiz's assertions are dead on target. The reason he mentioned India hones being different than fused ceramic hones Moss, was not because he thought you didn't know they were different, but because you seemingly asserted that once any hone is used with oil it must in every case henceforth be considered an oil hone. That is absolutely not the case with fused ceramic hones. Washing them off is about like washing off a piece of glass.

As an aside, being a machinist doesn't really qualify anyone as a hone expert. I myself used plenty of hones and stones during my tenure as a machinist, but I didn't gain anywhere near the knowledge I have now regarding those hones and stones until I started collecting and actively researching the different types and how best to use them. That includes at least single digit thousands of hours (literally; I'm almost certainly understating the number) experimenting with sharpening knives and razors and chisels and other tools. Grinding on a machine is not the same. Those grinding wheels are not fused alumina, they run at ridiculous surface speeds compared to hand honing, they are always considerably coarser, and thus more friable... so on and so forth.
 
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eKretz said:
Lol. I was a machinist and toolmaker for more than 20 years. In my experience, Mr. Wiz's assertions are dead on target. The reason he mentioned India hones being different than fused ceramic hones Moss, was not because he thought you didn't know they were different, but because you seemingly asserted that once any hone is used with oil it must in every case henceforth be considered an oil hone. That is absolutely not the case with fused ceramic hones. Washing them off is about like washing off a piece of glass.
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He and you thought wrong. Read my original post and you will see that I was quoting Baryonyx.
Only 20 years, you're hardly an expert. :D
 
Mossyhorn said:
He and you thought wrong. Read my original post and you will see that I was quoting Baryonyx.
Only 20 years, you're hardly an expert. :D
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No, didn't read wrong, I did see that - but it sure read like you were using his quote to back you up. Afterward, the man himself accurately replied that these types of hone didn't fit the bill for that quote. It's the porous hones that are a problem to recover once they're soaked with oil - but even some of those can be cleaned out. The troublesome ones are those whose binders are affected by oil.

And I totally agree about the 20 years! I have some amount of experience in these matters but certainly would never claim to be an expert.
 
We agree to disagree.



FortyTwoBladesBaryonyx walkeriDealer / Materials Provider
23,084
Mar 8, 2008
Don't use oil. One you use oil on a stone it's forever an oil stone. Just use water with a little dab of dish soap to break the surface tension and you're golden.

At least that's my experience. :)



Baryonyx Knife Co. ~Trusted specialists in high value, low cost knives and tools.

"To live at all is miracle enough."
— Mervyn Peake
 
Mossyhorn said:
We agree to disagree.

Mar 8, 2008
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You do realize that's a post from 2008, right? Citing an 11-year-old opinion from someone who currently refutes the dynamic as applied to sintered ceramics is...really unusual as a debate tactic. If I was really referencing sintered ceramics in that post, I was dead wrong, and I'm not afraid to say it. Over a decade later with a lot more research and experimentation with the advantages, disadvantages, and unique performance qualities of different abrasive formats under my belt, I can say without hesitation that using oil on a sintered ceramic stone is not going to make it "forever an oil stone". Just wash off any oil with a bit of soap and water and you'll be free to make use of whatever other non-oil lubricant you so choose.
 
And with the above refutation having had the opportunity to be expressed, we'll call it a day as there is little more to be gained.

All sides and their justifications have been provided...now it's up to those who wish to do so to find out for themselves if the matter is in doubt.
 
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