Diamond Machining Technology (DMT) D6EF Dia-Sharp 2-Sided Diamond Sharpening Stone Bench Plane, 6 Inch, Fine/Extra Fine

Quality - [8/10] (ends have visible marks from when it was cut with a bandsaw)Feel - [10/10] This stone just feels like a quality product. Also, it is very responsive and feels great when sharpeningFunctionality - [10/10] The “fine” side of this stone is rated at 25 micron (~800 grit) which is great because it can remove a good amount of material fairly quickly while providing a very workable edge.I sharpened my Para 3 in S110V steel (known for being extremely difficult to sharpen) in about 10 minutes. The knife was dull (hardly shaving any hair) and after using the “fine” side and stropping on 5micron and 2.5micron diamond paste, the edge would easily shave. After that i tried out the “extra-fine” side; which worked amazingly. The “extra-fine” side left the knife hair-popping sharp straight off of the stone! (I used a push-pull method to form a burr on both sides then forward strokes alternating sides each stroke to remove the burr). After the stone i brought the knife to my 2.5 and 0.5 micron diamond paste strops and the edge was mind-blowing. It will shave hair without any pressure (just the weight of the knife) and even cut a single piece of hair in half while it is hanging.In conclusion, this stone is excellent. It works for establishing bevels as well as taking them to shaving sharp. This stone is truly the only stone you’ll ever need.And if it’ll cut s110v in ~15 minutes... It’ll cut any steel for any knife, axe, chisel, plane, anything.Thank you for reading, hopefully this was helpful.

I am a woodworker (Hobby) and I have tried various ways to sharpen my chisels and planes.I used an oil stone but found it to be not very flat with poor results.I used waterpapers up to 2000 grit and got good results but the papers didnt last long and it was time consuming and messy.Then I bought a cheap diamond plate and it worked well for about 2 months and then the diamond coated vinyl coating lifted off the backing stone and became totally useless.I decided it was time spend a bit more money and buy the DMT diamond Stone.Its flat and strong and doesnt bend, its cuts fast and clean, and it works well with just water.I highly recommend it

One of the best brands for sharpening stones for sure. Super flat, quality coating, produces a consistently great edge even on super tough to sharpen steels. If you have a good quality knife, then get a good stone, and this is definitely a good one.

I had to send two of these back to Amazon because the stones where of poor quality. They where very roughly machined, so the surface of the metal underneath the layer of diamond was not even close to smooth, I did not like the idea of my blade running into nicks and deep gouge marks in the stone. Then the second stone I got was much smoother, but the layer of diamond thinned out to almost nothing on one corner of the stone, sent that back and finally got a good product. Once I received the good stone, free from defects, I will say it is a great stone. DMT diamond stones really are great, I have used other brand diamond stones, and they don't compare to this one. The DMT stones cut fast, yet leave a nice fine finish for being as aggressive as the are. Use light pressure with these stones, they cut fast and do not require much pressure. These stone do have a break in period, they will feel a bit gritty and rough at first, but mine did break in nicely and feel much smoother when sharpening. Also as they break in they will become slightly less aggressive, but they still cut pretty fast. I bought this stone because it was double sided and seemed like a good value. The fine side can give you a really nice sharp edge without even using the extra-fine side. The extra-fine will further refine the edge, but honestly is not needed to create a razor sharp edge. I already had a DMT course, so I went with this stone to complete the grit range. I would say if you don't already have a coarse stone, buy the double sided coarse/fine and have one stone that can reprofile and repair an edge using the coarse side, then have the fine side to put on a keen edge.

I purchased this diamond stone when I ordered the Ka-Bar, D2 fighting/utility knife- it was recommended to use a diamond stone for the D-2 steel knives from Ka-Bar- they were correct- when I first tried to use my Arkansas oil stones, the blade just slid over the surface w/ no sharpening action- the D-2 steel requires a very hard aggregate to produce any sharpening effect- the DMT fine side did a very through job in producing the needed cutting action for this very hard steel- the extra-fine side does a wonderful job, polishing the edge to produce a razor edge-I have since used the stone on all my cutting tools, as a 30+ year woodworker, my chisels, router bits, plane irons and marking knife all have seen the face of this top quality stone - my hunting knives as well as my mothers kitchen knives, all get a "fast" glance across this stone-at first the price was a concern, but the time saved is well worth the price- give any of the DMT products a shot (I have) & all perform very well- thanks Amazon for the good quality reviews that help me find just what I need

Works perfect for sharpening 3 blade broadheads