Grand Logarithmic Grit Chart
Questions and Answers
Questions & Answers
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Recent Questions

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Guest  •  1 month ago
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⚙️Leading Edge  •  1 month ago
There is no specific amount of knives, it depends on the grit of the stone, the type of steel, the amount of metal needing to be removed, size of knives and many other factors. When the stones get loaded up with metal or they don't cut the way they used to, then they need conditioning. You could do a light conditioning after every few knives if preferred, that won't do any harm and will ensure consistency in their performance.
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Guest  •  1 month ago
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⚙️Leading Edge  •  1 month ago
If would take a significant amount of use before lapping / flattening would be necessary. What should be done more regularly, is conditioning and cleaning with a conditioning stone. Simply rub a soft aluminum oxide conditioning stone over the surface of the sharpening stone, under running water to clean, condition and refresh the surface of the stone when desired.
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Guest  •  1 year ago
Would a complete set of Metallic cbn stones be a good choice of stones to compliment a complete set of Edge Pro Diamond Matrix Stones and Boride CS-HD stones?

Since metallic CBN stone can be used on any type of steel and EP diamond matrix stones, and Boride CS-HD, cannot be used on softer steels, I would like to believe it might be a good choice of stones to add to my collection.

Any suggestions?
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⚙️Leading Edge  •  1 year ago
With the stones you already have, I would personally not specifically recommend adding a set of metallic CBN stones. You will be able to sharpen any steel with the variety of stones you already have. What I would recommend, is getting some low to medium grit diamond plates for quicker bevel setting and fast metal removal when necessary.
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Guest  •  1 year ago
How do these compare to the Poltava Premium Metallic CBN Stone 6" x 1"? I know the the thickness are different. Does Hapstone or Poltava cbn stones have any advantages over the other? Is the metallic binder used the same for each brand? Since both Hapstone and Poltava Metallic cbn stones are made in Ukraine it almost seems that they might possibly be exactly the same?

Thanks!
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⚙️Leading Edge  •  1 year ago
There is no specific major advantage between the two types. It will come down to personal preference more than anything. The manufacturer does not specify which factory they are made in.
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Guest  •  1 year ago
I've also have all the necessary equipment to go
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⚙️Leading Edge  •  1 year ago
If you choose, you can etch them. Note though that they are not meant to be excessively aggressive stones. Too much etching might make them too aggressive, leading to possible edge microchipping while sharpening.

FYI, you can also refresh these stones by lapping - using coarse silicon carbide powder on a flat surface.
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Guest  •  1 year ago
The photos included in the 3 star review left for the Hapstone show both the Poltava and Hapstone stones in a box, and the Hapstone brand looks slightly thicker, which would require adjustment in the sharpening process, when switching between brands. Can you confirm? Not sure I want to mismatch brands if it requires adjustment.
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⚙️Leading Edge  •  1 year ago
Q - The photos included in the 3 star review left for the Hapstone show both the Poltava and Hapstone stones in a box, and the Hapstone brand looks slightly thicker, which would require adjustment in the sharpening process, when switching between brands. Can you confirm? Not sure I want to mismatch brands if it requires adjustment.

A - Yes, they do are have differing thickness. That said, I highly recommend getting into the habit of always checking and adjusting your angle between stones, even if it's stones of the same brand and type. This will yield the best sharpening results.

Secondly, for consistency always check and adjust your angle on the same side of your knife blade, not opposing sides.

When it comes to stones, it is only metal plated stones that can be very close to the exact same thickness. With other bonds and stone types, you'll find every stone will eventually have differing thickness, even if they start off the same. Different grits wear down at different rates over time in the sharpening process, some are used more extensively and others less. Invariably your stones will all end up being many different thicknesses, this is why it's a good to get into the habit of checking and adjusting your angle every single time you swap stones.

Even if you know some of your stones are the same thickness, always check and adjust your angle if necessary when you swap stones.
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