Which diamond stone ?

J

J389

Joined
Nov 19, 2020
Messages
8
All my sharpening is done by hand, not an expert but reasonable.
I sharpen on DMT stones to extra fine and then strop with 1 micron paste; I've found that gives a good toothy serviceable result on my K390 blades.

I've worn out my DMT duo F/EF diamond stone and looking to replace it.

I've narrowed my choice down to either an Ultra Sharp diamond plate set in 600 and 1200 or the the Venev bonded diamond 400/800 stone, but always happy to consider other options.
Would appreciate your recommendations.

I have used a Venev bonded diamond stone, nice finish but I did cut into the resin, is this normal or just poor technique on my behalf ?



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I would go with the Venev myself I really like the edge they produce,you may also want to get a lower grit Venev combo stone later on for reprofiling.

The problem with Ultra Sharp and DMT is that they are diamond plates and the diamonds are just electro soldered into place and that mean they will tear off easier.

With the Venev stones they resin completely surrounded by resin and they are heald in place much better,if I were going to go with a diamond plate I use Atoma's but they also but very aggressively which means your wasting your edge by using one.

If you get the Venev stones also get 60 grit silicon carbide powder and 120 and 400 grit aluminum oxide powder from gritomatic and refresh and flatten them on glass.

The reason to get 60 grit silicon carbide powder only is because silicon carbide is more friable and breaks down into a finer grit faster then alumminum oxide powder,the problem is gritomatic doesn't have 60 grit aluminum oxide powder so I just use silicon carbide in the grit only.

The Venev stones also stay flat for a very longtime and I find they are still very flat when the diamonds have worn back flush with the resin when I need to refresh them.
 
I have the Venev 240/400 and 800/1200 stones and have never cut into them. I like them a lot.
 
A Venev set is definitely great value for money and a good way to go.
 
Don't have enough experience with Venev stones to comment thoroughly. Have a couple small Venev stones I'm trying as pocket sharpeners. I did note some resin coming off one of the stones while using it to soften the edges of a knife spine once, so it seems that is something that can happen. Have not really noticed that while sharpening an edge though.

For bench stones, I think the best are Atoma stones when it comes to electroplated stones. DMT are OK but I like the Atomas more.

If you want to drop some coin the Naniwa bonded diamond stones are worth a look. They are not very fast but overall better quality than the Venevs (in my limited experience with the Venevs). But far more expensive.
 
rocketbomb said:
They are not very fast but overall better quality than the Venevs (in my limited experience with the Venevs). But far more expensive.
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You may have old generation Venev stones, the new generation with upgraded bonding are exceptional stones.
 
Wade, black silicon carbide isn't very friable and I find it lasts a little longer than brown aluminum oxide when flattening quartz lapping plates, which is harder on the abrasives than dressing stones. Black Sic and brown alox are the least friable of the respective abrasives. I know EP sells 60 grit black Sic and I sell 60 grit brown alox, both are from Washington mills, high quality, and made in the USA.
 
Diemaker said:
Wade, black silicon carbide isn't very friable and I find it lasts a little longer than brown aluminum oxide when flattening quartz lapping plates, which is harder on the abrasives than dressing stones. Black Sic and brown alox are the least friable of the respective abrasives. I know EP sells 60 grit black Sic and I sell 60 grit brown alox, both are from Washington mills, high quality, and made in the USA.
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The silicon carbide I got wasn't very good and that's why I switched to aluminum oxide,the sic powder I got was a really light grey in color.

The aluminum oxide I'm using now is from gritomatic and I'm really happy with it.
 
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