Amazing Product!
Everything from purchase to shipping was top notch!!

I was on the fence about buying a diamond stone with a 4000 grit but I am so pleased I did. The grit on this stone is so fine that at first I thought it might be a defect. I reached out to the sites customer service and asked about it and Paul assured me the stone was as it should be. Used it the very next day to finish a few knives, this stone works very well. To the touch, you might not be able to feel the grit, but the knives I sharpened definitely showed excellent results with this stone. I might even buy the 8000 grit DMT Dia-sharp when I get a little more money. Almost got a mirror polish off this stone. Fantastic stone, excellent construction, and very flat. After buying four DMT diamond stones, I am seriously weighing switching to diamond stones for most of my sharpening needs. I still prefer traditional whetstones for convex edges and final polishing, but for everything else in my collection, I will very likely be using the DMT diamond stones from now on. Great service, fair prices, and excellent shipping time from time of purchase. I highly recommend these stones and this site for all sharpening needs. I am very satisfied with my purchases!

This stone was one of four (320, 600, 1200 , 4000) I purchased to work on some very tough steel blades, and I am shocked by how great these stones feel during sharpening. I was leery of diamond stones but really needed something stronger than the old stones I had for sharpening. The DMT dia-sharp stones are so good in every way. Very well made and produce excellent results. Most of my outdoor knives could probably be finished using the 600 grit DMT dis-sharp, but the edge this 1200 leaves has so much bite due to the striations these diamond plates leave versus traditional whetstones, that I am amazed at the results for a stone listed as "Extra Fine". Highly recommend these DMT stones. Shipping was fast, prices are more than fair. Great product, excellent service.

I bought this 600 grit DMT dia-sharp along side several other diamond stones and could not be happier with their performance. Shipped very quickly and came in perfect condition. Worked every knife in my kitchen and bushcraft collection. These stones work and feel amazing, and this 600 does an amazing job of putting a pretty fine edge on a number of my knives by itself. I'm very pleased with this purchase.

This diamond stone cuts so fast! Very pleased with this purchase. I will probably be picking up a lower grit like 220 for some very damaged edges I have in my collection, but this one will take care of most edge issues in no time. I bought this with the rest of a set of diamond stones to work on some K390 blades and wow do these stones feel great.

Use as a finishing stone on my Aogami Super Blue steel and VG-10 steel knife blades. Great finishing stone for the harder steel.

Great sharpening rod " BEFORE " using my Idahone ceramic fine honing rod : this one, as a 2'nd step, for daily / weekly maintenance ... A " must " : I use that Wusthof " diamond " sharpening rod about 2 times per month, not more !

I purchased that utility knife specially to " open " packages, before slicing the product inside, and it's great !

i have not used this stone extensively so I can’t offer a full review. It is very well made and came dead flat. I did use it to polish some S35VN on a pocket knife and it came up to a very bright finish. I’m interested to try some mirror polishes with this stone. It was also really easy to clean after sharpening. It did not seem to load up with steel and scrubbed clean with some alcohol on a microfibre cloth. I think this stone is going to last for a very long time

I’ve been using these since I got my machine around 2010. It’s probably my most used stone in the EP. To me it’s the closest stock stone to a 1k grit. I will often finish my softer stainless knives on this stone or follow it with a couple passes from the 600

I’ve used the EP 220 for a lot of years. It’s a pretty hard and fast cutting stone. It’s a solid place to start for a moderately damaged edge. If I want to drop the sharpening angle I will usually start with a 120 but I switch to the 220 before hitting the apex

Works really good with my Wusthof Epicure knife. Now it’s as sharp as the day I bought it.

Solid product ( edge pro #4) well packaged, well priced and received in good condition! Great to have a domestic source for this well made line of products!

I must admit, my expectations were not high. I had doubts about the handle. Turns out, I love it. Nice and chunky. Grippier than I expected. The knife came sharp. The blade is surprisingly well finished. Not perfect mirror finish, but really close. I have a hard time calling this an entry level knife. I haven't had it long, so we will see how the edge holds up and how sharpening goes.