Naniwa Diamond Whetstone Grit #1000 DR-7510

I ordered one of these 600grit resin bonded Diamond Stones for my knives made of modern super steels like my Bradford Guardian 4 M390 and my Benchmade Bugout S90V which are both hard steels. It seems to do really great with them. Has great feedback, great tactile feel and just like my Chosera ceramic stones i use for standard carbon steel knives it sharpens fast and seems really hard and slow wearing. I first had tried a Nanohone 1500grit resin bonded plate and it was an awfule stone that the binder used was too soft and didn't even do anything at all. The Naniwa is the way to go. Expensive yes, but also will last much longer than any CBN or plates with industrial Diamond sprinkled on top of adhesive smeared across a stainless steel plate. Which dont get me wrong those plates work great but do not last.

I sharpen knives everyday. it’s not my profession but I sharpen for myself, friends and family. This is the stone I use before moving to a finishing stone. If you don’t want or need a polished edge this stone would be great as the last stone in your sharpening progression. This stone cuts fast and leaves a beautifully consistent scratch pattern. You wouldn’t think it cuts as fast as it does by rubbing your fingers across it. The diamond resin coating is smooth and consistent. It loads faster than some other stones but cleans easily with a nylon brush and dish soap, and doesn't need flattening. It also comes with a dressing stone to remove any build up. I prefer to use the Naniwa flattening stone I purchased separately over the included dressing stone as that flattening stone is smoother than the included dressing stone and I think using the flattening stone will extend the life of this excellent stone. just use it, clean it occasionally and enjoy sharp edges. The technology used to make this stone is pretty incredible. If I had to pick one stone to sharpen with it would be this Naniwa 1K diamond resin. Gets the job done.

I sharpen daily my work knives (sushi chef) and got a 600 grit a couple of months ago. Recently got the 3k (and I have the 6k on the way). It's amazing on powdered steels, my main prep knife is a zdp sujihiki and my service knife is a blue steel super sujihiki and sg2 yanagiba. 600 is decently quick at getting a burr going vs my shapton (rockstar and kuromaki). The 3k gets it to a nice finish, both feel smoother than the grit but perform relative to the grit. The 3k tho loads up fast, so it's a constant clearing. Idk how I'll feel about the 6k. Its okie on vg10, I don't think it's worth it unless you have harder steel knives. I sharpen my coworkers knives, mainly vg10 and stainless steel (most likely aus10), it's good but I feel it's a waste to add wear on the stone. 500 grit Rockstar or kuromaki does quicker work on those, for a third of the price. Great stones for daily maintenance, it's part of my regime for my weekly sharpening as well. The stone is mainly base tho with the actual cutting surface like 1 or 2 mm thick. We'll see how long they last, they stay relatively flat vs other ceramic stones tho. I would get them again if they last me more than a couple of years of regular use. A bit pricey for the occasional use.

The very best available hand sharpening stone on the market.

Nice stone but seemed finer than a 1K. Feed back was light but got the job done. Not as quick cutting as expected. Will try on ceramic knives in the near future. A little on the Pricey side. ( I am a big fan of Naniwa/Chosera stones)

This stone works extremely well and cuts harder steels with ease. I personally believe that this is fair priced for how well it works. Soapy water makes for extreme ease of use as well. Comes in an average size compared to many other stones. Would say that it is a bit heavier than ceramic stones but the weight really isn't compromising.

This is perhaps my favorite of the 3 Naiwa diamond-in-resin stones I have. It cuts quickly, and can roll a consistent burr back and forth across an edge. (The 400 grit is great. Fast cutting on the verge of being a little harsh - but awesome, and weirdly still quite smooth. - The 3000 grit stone in this line is soft, milk-smooth & very effective.) I am comparing these stones to the older 'Pro' Naniwa ceramic water stones in 600, 1200 & 3000 grit. I like sharpening on the splash & go stones, but the resin stones are objectively faster, and I think many people would prefer them, if they didn't mind the price.

Nice smooth almost satiny feel when sharpening. Is doing a fine job on several of my high vanadium steels and gives a very aggressive toothy edge. So far, M390, S90v, and CPM M4. The surface is harder than the Veneve diamond matrix stones I have here. Tried the dual grit system with a veneve 240F+240 JIS and the Naniwa 600 JIS grit and later the 600 on one side and 800F +2000P grit diamond veneve on the other. Very smooth cutting in cardboard and very long lasting edge. The 240/600 was more aggressive and rough cut but lasted even longer. I will order a Naniwa in 400 JIS for further testing. (All grits followed by only one swipe each on 1 micron diamond compound on very hard very old wood mounted razor strop. any more kills the effects). KnifeMaker

Oh I like this. I like it very much!

I am a working professional and I've used many naniwa/shapton stones and I fell in love with this one quickly after first use. Tried this on a blue #2 yanagiba. Gave a very polished finish similar to a 3~5k grit stone and a smooth scratch patterns that are barely visible. I would just use this one stone only or maybe add a 3k if I need to make a second bevel.

Excellent item, works very well.

鉋や切出しを研ぐのに使っています。 よく研げて面が狂わなくてとても良いです。 研ぎにくくてしょうがない新品の粉末ハイスもよく研げます。 最近は6000まではこのシリーズの砥石で研いで、刃先のダレをできる限り抑え、最後だけ天然で仕上げています。 そうすると仕上げ砥石が刃先にちゃんと当たるので研ぎ上がりが早いです。 以前は硬さに定評のある刃の黒幕を使い、しょっちゅう砥面修正をしていましたが、それでも刃先がダレてしまっていたんだという事に気付かされました。 使うと結構すぐ黒く目詰まりします。 付属している小さい目立て砥石（GC？）は荒すぎるし面が狂う。 電着ダイヤで面出し&目立てした1000番の刃の黒幕で目立てをして使っています。

The surface is smooth enough to the point where a 50 HRC 1095 knife is exactly the same after 20 passes a side. If you really want the stone, buy a glass pane. Cheaper, bigger, and not 200 dollars.