Review of VENEV Gemini Series Curved Metallic Bonded Diamond Sharpening Stones

There is a LOT of info here in the description section. Click on the words "SHOW MORE" (just above the comments) to see it all.
The place I got my narrow VENEV diamond curved stones is www.Gritomatic.com - they also sell them on their Amazon page. Different GRITs have different prices!!
CURVED for recurve blades:
www.gritomatic.com/collection...
Please let them know that Jake from Canadian Cutting Edge sent you.
At Amazon.COM sold by Gritomatic but they only have a few grits in stock: amzn.to/30veu1h
Here is the Amazon storefront for Gritomatic - amzn.to/2DnhEvo
Faster shipping because the products are already in USA.
FLAT diamond stones (25% - This number is often misunderstood, 25% is the standard amount of diamonds the sharpening stones. They also make them in 50% which = 2x the diamonds, and 75% which is 3x the diamonds, and 100% which is 4X the diamonds as the standard sharpening stones.)
"25% diamond stones" - 3 stones = 6 grits 100, 240, 400, 800, 1200, 2000
amzn.to/2DnhPH3
If you want more traditional sytle stones with aluminum holder: amzn.to/3ic5kNj
I strongly suggest the 100% types as they have 4X the amount of diamond as the 25%
All the VENEV stones that Gritomatic has - www.gritomatic.com/collection...
I have used many types of diamond stones in the past. Most of which have a cross-hatch pattern or dotted pattern of some sort on the surface. None of those have been as useful as the VENEV stones. I most highly recommend the VENEV brand.
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BORIDE stones. You will see many types, but I prefer the CS-HD over others like the T8
Gritomatic has them on their online store and in their AMAZON store:
www.gritomatic.com/collection...
Amazon
Wide CS-HD - amzn.to/2V9WvZw
Narrow CS-HD - amzn.to/2LAnJEt
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BORIDE website
If you can figure out how to navigate the BORIDE website, they will sell directly to consumers. Their website is set up moreso for businesses, but it can be the cheaper way to get their stones -
One stone at a time - www.borideabrasives.com/Publi...
SETS of stones - www.borideabrasives.com/Publi...
On the right side of the page you select the type - CS-HD (or other if you want)
And then you select eitehr the Standard Kit or Fine Grit kit. Standard is 5 stones 150 to 600 and Fine Grit is 6 stones 320 to 1200. I buy BOTH kits. I wish they had one kit with all grits.
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[@kidbach]

another awesome lecture from the fine faculty at CCEU. Thanks for sharing, Jake.

[@CanadianCuttingEdge]

Thank you! I try to find good educators to speak here at CCEU.

[@smsgtbulldog]

Nicely done

[@CanadianCuttingEdge]

Thank you! Cheers!

[@ytwilhemg]

Those stones looks great even for using it by hand I like hand sharpening and only have 1 recurve knife.

[@CanadianCuttingEdge]

By hand, it would require a lot of good hand-eye coordination but I can see that working for some people.

[@dandildarious4849]

I just got 3 today, and now they know come with a very nice aluminum base , and it also says the grit # on the back in english.

[@CanadianCuttingEdge]

Yes, I saw some since I made this video. very nice indeed.

[@bdh3949]

I have a number of recurved blades of different lengths. I've been using sharpening rods and honing rods for a workable edge. I think I'll try these.

[@CanadianCuttingEdge]

Rods are also a GREAT option for sharpening recurve blades.

[@TylrVncnt]

Something to note: these stones are in the “F” scale, not a typical grit rating, for example F2000 is almost like ~P10,000 (!!) so much finer than you’d think

[@CanadianCuttingEdge]

VEVEV factory measures their stones soley in micron (μ - sometimes written as"um") size of the diamonds,, not the F scale. Gritomatic (the American based retailer) put both the μ and their F equivilent on the the Gemini backing plates when they prepared them for sale in USA. So it SEEMS like the stones are in F scale but in fact even Gritiomatic put both the μ and the f equivilent on batch that I recieved. Of course, they would be free to write whatever they want on the aluminum backer plates. The fact remains that VEVEV measures grit in microns. VENEV stones from the factory do not show the F scale but only the μ size of the diamonds. In micron measuremens the smaller the number means a finer stone. 200μ is the most coarse stone that I use and I have finer stones all the way down to 1μ . (but not in this particular series) You can find a very broad ranging chart made by Gritomaitc., You can view it online or buy it. VIEW - www.gritomatic.com/pages/grit-chart BUY: www.gritomatic.com/products/waterproof-glgc-grand-logarithmic-grit-chart

[@thepolarbear5046]

Sur where is the sharpness result pls i want to see it. If you can’t can you pls make a full video🥺

[@CanadianCuttingEdge]

The sharpness result is that the knife got very sharp, as sharp as any other knife I have sharpened. I have a sharpness measuring system - you can watch this video I made on how I use science to measure how sharp a blade is: kzbin.info/www/bejne/r5DKmoyYe5ykq8k Using these stones I can get the knife sharp enough to score 25BESS on the tester, that is VERY sharp. Most new knives I buy arrive from the factory with a sharpness around 140BESS from the factory, which means I can use these VENEV stones to make the edge over 5 times sharper.

[@kierstinschmidt2514]

I guess you can call that five times sharp. It might be more informative to describe the apex width as .05 µm. Versus .3 µm at 150 Bess. It’s important to note that only certain steels are capable of being sharpened to under 100.

[@Rockster04]

I’m going to get some of the Venev curved diamond stones. Do I need the F80 grit or can I start with a finer grit? What do you recommend?

[@CanadianCuttingEdge]

For recurve work you can generally start a bit finer, the 80 is just needed if you are going to repair some NASTY sections of blade.

[@cynot71]

How does the stone handle the heel of an edge? Do you have to tilt it for the stone to make contact?

[@CanadianCuttingEdge]

I use it almost exactly as I do a typical flat stone, I just have to be very careful to not run the stone off the heel lest I round it off... Oh wait, I think I know what you mean now. Yes, one option is to roll the stone a bit to one side, where it seems to be a bit flatter near the edges of the stone and sharpen the heel that way. OR, what I often do is just use one of these stones for the recurve part and I use a flat stone to the the heel of the blade and the belly of the blade - of course, that only works if the recurve doesn't go all the way deeply into the heel of the blade. Another type of stone I have that can help me if its too complex is the BORIDE brand narrow stones. Those are narrow enough to be used for many recurve blades and they will get the heel done well. I prefer the VENEV curved stones because they get the job done faster and they are great even for premium steels that are quite hard. I hope I haven't confused the issue with my extra long reply.

[@cynot71]

@@CanadianCuttingEdge No, I understood it all. I have narrow stones, but they are only good for knives with a slight curvature. For really curvy and small knives, like karambits, the left edge of a narrow stone creates deep cuts into the bevel. Think I just have to live with not being able to sharpen the heel. After all, who uses the heel?

[@corismsyn]

Where do you buy the narrow blanks?

[@CanadianCuttingEdge]

Gritomatic.com - I believe. they are not on the list of items, but as I am a regular customer I asked him if they could supply some. Click on Contact Use" at the bottom of any page on gritomatic.com and they have an email form there. Ask them if they could sell you some _ they are from Russia so unless you order some stones or something else it might not be worth the shipping costs, but his shipping fees are pretty good.

[@georgeyoung4292]

Dont do as i do, do as i say!!! Hmmmi wonder where ive heard that before!!!?? Ahhhhpolitics😂

[@CanadianCuttingEdge]

I made this video a while ago, so I cannot recall what context you are referring too, so I can't really respond either.

[@georgeyoung4292]

@@CanadianCuttingEdge You wrote on the screen that your strokes was too short and right after it wrote "Dont do as i do, do as i say" It was funny and we see it in politics all the time

[@greggrog3627]

Industrial diamonds are man made

[@CanadianCuttingEdge]

Industrial merely means they are not good enough cosmetically to be used in jewelry. I am very familiar with them, I worked with industrial diamonds with my father for several years - he had a custom tool and die shop and he installed them on parts he sold to Timken (the bearing company). Man made diamonds are called either "cultured" or "engineered".