- Diamond Sharpening Stone Set, 5 Pieces Coarse/Medium/Fine Grit Sharpener, 400/600/800/1000/1200 Grit

I really liked the idea of these plates as I have many knives that I have "sharpened" over the years but those products never really worked that well. I saw these plates used in a YouTube video and figured I would give them a try. While they are quite thin, as another reviewer noted, they do work exceptionally well. I recently became obsessed with modifying a super cheap hatchet from Harbor Freight as they are well known as being dirt cheap and well made, albeit needing a few cosmetic and functional upgrades. My primary modification was to add a much narrower bevel to the cutting edge to make it more of a cutter and less of a splitter. This was easily achieved with some files and a rotary tool, however, re-sharpening the edge proved challenging with the equipment I had. That's where these plates came it. They allowed me to shave a consistent 30-ish degree edge to both sides of the hatchet through about 10-15 passes per side per grit plate. It was made easier by the fact I was able to use both hands to perform the work. Every other product I had used up to this point, I was only able to have one hand on the actual knife itself. After the careful edge work, I finished the edge with a leather strop and HOLY COW, the thing is now razor sharp. I could probably shave with it if I had to. These plates are great and I think I will get a lot of use out of them as they seem to manufactured quite well despite being on the thin side. The grip texture on the backside is a nice feature.

These are well-designed for the purpose and they look sharp too. The metal plate is solid - does not flex under pressure. The honeycomb pattern looks great and is functional - provides a channel for the fine grit to slough off between the grit hexagons. You can feel the difference in roughness between the plates and after several hard uses, it is still about as good as new. The medium density foam on the bottom seems to provide a good non-stick base and provides a buffer to keep the plate from scratching a delicate surface, like wood. I used a bead of water as I sharpened and liked that this helped wash off the grit as I filed and moderated temperature, but it did cause rust spots to form surprisingly quickly. I don't personally mind - doesn't affect the performance, but you might - ruins the clean look. I sharpened a ceramic blade on these and it removed the material easily - which I see as a sign that the grit is likely actual diamond grit. Less hard grits cannot do this (and this was the main reason I got this set).

I've used these quite a bit to rescue dull damaged blades. They work really well and give me a very nice edge. Very durable, as I've sharpened 20 knives and 5 pairs of scissors. Using the various grits to deburr and hone the cutting edges is easy to do. I've recommended this set to several people as I think it's a great value to get a good product.

works good to restore the edge and finish to a razor sharp edge. Just personal experience. If you are new to sharpening don't get extremely caught up in the angle of the edge. Use the angle that comes naturally as in slicing a thin slice, that way it is repeatable and easily duplicated, Allowing you to quickly refresh the edge.

I am happy with the quality of the stones. Good price.

Great plates for the money! Cleaned up some stones to true flat! And put a grrat polish in some of my more difficult blades!!!

Need the blocks to be thicker these are thin sheets not great but they sharpen well

Bought these with not much confidence they would be any good. I have been using the “stupid sharp” method with wet/dry sandpaper on glass. Got tired of replacing sand paper. These are a little rough to start and needed the sharp edges of the diamonds knocked down a bit but now with some use the run clean. If I bought another set I’d find a flat steal I could run over these before using a wood chisel or plane blade on. I still sometimes use high grit wet sand paper to polish but these have been pretty good.