Ultra Sharp XL Double-Sided Diamond Sharpening Stone - 300 & 1000 Grit - Coarse/Extra Fine

This is a solid stone to get any knife to a good working edge. "Working edge" being the key. Don't expect a 1000 grit to give you razor sharp hair popping edges, but this stone will get them pretty darn sharp... I use this one to get my edges sharp and profile quick, from standard stainless kitchen Knives to pocket knives made with premium super steels, this stone's medium side will reprofile most dings and such in a badly dulled blade, the fine side will get a good working edge on anything. Then with a nice sharp edge set, for shaving sharp edges I take them to a 2000/5000 water stone to polish them even finer...

works great

I have been using this since February and it works well to set and sharpen an edge. So far it has stood up well and still sharpens chisels and plane irons well, though the coarse side has discolored a little bit, I am not sure if that is rust or something else.

At first I thought this maybe a decent stone for the $50 mark. Man was I WRONG! Now I sharpen a lot of tools in my new hobby and I got tired of whetstone and the mess they require so I thought I’ll try this. It worked ok the first 2 dozen times but I noticed it got slower and slower. Now when I try to use it it takes me 15 minutes just to reset a 25 degree bevel on a plane iron! The stone has wore down to a fine on one side and a very fine one the other. It’s only been a month and 4 days. They say they have a lifetime no questions asked guarantee and I hope they contact me to make it rite, however I don’t know how to get a hold of them on amazon since the 30 days are up.

I've seen many videos on it and it works great. Took my hand planer's blade and worked in just 5 minutes to a very acceptable sharp edge. I would have liked the manufacturer to give their own usage instructions to make my confidence go up just a little more. Even give various options for ways to use their own tool on various items. Knives, blades from different tools, and the sort.

I was not sure how to rate this. It came with no instructions which is ok for what it is. But I wish it said "do not leave wet for long". I have been using it wet and not bothering to dry it off. Rust started to form. I was able to scrub most of it off but would have been nice to know. Mine did have 2 different grits as it was supposed to, so no complaints there. Other than rust it is functioning as expected.

Beautifully made and seems to work very well, based on subjective experience. I think only the machinists out there can actually measure the flatness of these stones but subjectively this stone seems to do a great job of resurfacing my various water stones. Pricey but the quality is quite apparent; I think you will be very pleased when it arrives.

This is a good item however one side was supposed to be a fine grit on my item both sides are identical which is a medium grit. Good item but unhappy with both sides being a medium grit.