Fallkniven DC521 Diamond/Ceramic Dual Bench Stonesearch

Fallkniven DC521 Diamond/Ceramic Dual Bench Stone

Fallkniven DC521 Diamond/Ceramic Dual Bench Stone

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"Simply stroke the edge of your blade along the edge up to 10 times on one side; then flip the knife over and repeat the process. If you want to get your knife to a super fine edge, turn the stone over to the slow, fine ceramic side and use the same technique." Can we get someone to write the copy that knows how to sharpen a knife? If you pass any blade over any stone 10 times then repeat on the opposite side all you are doing is pushing the edge set angle from one side to another, and you will probably make the blade duller than when you started!
Holy grit! Just reading the comments makes my head spin. Just buy the damn stone!
treeinc
^^^ What he said.
Good things come to those who wait. This IS a great deal. Sadly, this is the same grit that I have in an even larger DMT Diasharp stone. Personally, I have not heard negative things about this (DC521) stone. Fallkniven is a very reputable maker of quality knives. I might have to buy this one on general principles. The non-diamond side contains synthetic sapphires. The grit is smaller than 50 micron, the diamond side, but neither could I, find a number for it. I have a large DMT extra-fine stone, but I rarely use it, because blades come off of the fine grit stone very sharp to scary sharp.
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There's been some discussion about Fallkniven's grit specs in the past. (Here's a link https://www.massdrop.com/buy/fallkniven-cc4-ceramic-whetstone/talk/1802988?utm_source=linkshare&referer=K3ZTS7 ) A guy emailed Fallkniven and they said they didn't really care about the exact grits, as long as their stones work. But I think grit ratings are less dependable than we'd like to think, anyway. I recently got a new Japanese water stone, similar to Shapton but not as expensive, and I was blown away by how fast it cuts AND what a polished edge it leaves. I guess it's great that technology is advancing, but if a stone can cut faster than its grit rating, while actually leaving a smoother edge, then what grit is it? Coarser or finer? It seems we have to rely on other people's experience of what stones work for a certain job. Anyway, you guys aren't alone in finding grit ratings confusing!
Tigerman
Your comments bring a whole other level into this discussion....
First, let me say this: All abrasives, whether paper/stones/ceramics/diamond plate, are going to have some variance in size for individual particles. The best we can ever hope for is an accurate "average" for the piece. Even with ceramics, Fallkniven should be able to tell us that based on measurements taken from the scratch pattern they leave behind. Since SOME of their ceramic products DO mention it, they should be able to say for all. Joe Shmoe's version of "extra fine" might be my "medium". For them to just say it works tells me nothing.
But, on to the new stuff: Speed and grit aren't always directly related. Lower grid GENERALLY remove steel faster, but it's not always a direct correlation. I've owned multiple stones listed with the same grit, that do appear to leave similar scratch patterns under a loupe, that work at much different speeds. Therefore, based on the appearance of the scratch pattern, i'd say they're the same grit, but one is fast and one is slow. Then I've got this 2k stone that removes steel as fast as the 1k stones I've had, but leaves a finer scratch pattern. I'd still say that's a higher grit stone, and it's just a fast cutter, i wouldn't call it coarser because of its speed.
It's about the cutting ability of the particles used, not just about their size. It also has a bit to do with the material the abrasive particles are bound with, how much the abrasive sticks up above the surface, how quickly the binder wears, and how often new abrasive is exposed to the surface.
I do get what you're saying, i just think you're confusing matters when you say you'd consider a faster stone to be "working at a higher grit"
To me a whetstone has 3 main characteristics; grit rating, hardness, speed. All 3 have to be looked at together in order to guess at what the stone might be like before buying it.
-Grit is grit, if their ratings are accurate and you know what scale they're measuring by, that should tell you the level of finish it will leave. -Hardness will tell you how quickly the stone will wear, how much it will dish, how often you'll have to flatten it. Now, softer stones will release fresh abrasives more often, so they often work faster. But, depending on your usage and how flat you need it to stay, you'll spend more time flattening, half the stone will be wasted and overall it will just wear out quicker -Speed is the one thing that will always be subjective....but like i was saying above, you can find fast and slow stones all up and down the grit scale
All that long winded rambling aside lol What's the stone you got? Always interested in trying new ones that cut fast and are reasonably priced 😁
I love the DC-3, which this is a larger version of. Some reviews I have read says that these are not as good, other reviews are steller. Of the negatives I have read it had to do with the 2 sides coming a part. The other compaint is that these stones are too gritty. On the grittiness, these stones do require a break in process but after about 4-5 sharpenings they smooth out nicely. The Cheapest I have seen this has been around $70 US, so it is a good buy. I have a lot of Jap. Waterstones and carry the CC-4 and DC-3 aloong with a ARK Hardstone everywhere I go (Desk, Truck, Backpack). The smaller stones are hard to beat for portability. I think for this price why not add it to my stone collection.
No grit info?
Through the power of Google, I was able to find on an amazon product description that the Diamond side is 25 micron, but there was no info about the ceramic side. The Fallkniven website had no info at all about grit levels.
Quarnozian
I just saw that number, 25. I could not find a grit for the ceramic, either.
Is this like the other fallkniven bench stones, where they aren't very effective or good?
Dinner4tuba
probably.
Dinner4tuba
If this is a scaled-up version of the DC-4 that came with my Fallkniven A1Pro, then I am ‘in’! Very useful in the field but I would never use it on a convexed edge like the A1Pro: that would be the mousepad and ascending grit sandpapers (lovingly applied)! This is good, though, for conventional bevels/microbevels—or it has been good for me lately. Cheers!