We will be releasing a new version of these stones called the Max line in the next 2 weeks. They will have as much diamond powder in the resin as possible, between 2 to 3.5 times higher diamond to resin ratio than the standard line , with a 25% increase in price. With the coarsest grit seeing the biggest difference in concentration. At the moment, I would say the improvement in performance is about in line with the increase in cost, with a small increase in wear rate. They don’t make any difference in how sharp each grit can get your edge or how well they polish, but they do cut faster and will go longer between dressings than our current stones. I still think our standard resin to diamond mix is a better value, which has always been higher than 50/50 diamond to resin by weight, but these new stones take cutting speed and feedback up a notch or two. In time, the Max line may include our wider stones too.
These stones measure .287″ thick x .975″ wide x 4″ long. The backs are .225″ thick with a .062″ thick diamond/resin matrix. Save 10% when buying a full set.
All of the resin bond stones that we make use the same high quality, tightly sized diamonds, resin, and are mixed in the same ratios. The only difference is their sizes.
These stones work very well on the KME knife sharpener if you use our stone clamp. This clamp works much better than the original for all stones, not just ours.
Be aware that you will need loose abrasive and a flat plate to dress them with, both for maintenance and initially as they generally ship without being dressed.
While I do everything possible to ensure these stones are free of voids, I can not guarantee they will be for their entire life. While they are unsightly, I have never seen them affect how the stones cut or polish.
These stones may be used on guided sharpeners with the correct stone holders. The photo on the left shows the stone with a standard stone holder for Edge Pro style stones that work and the one on the left shows what doesn’t work. The Edge Pro uses 45 degree dovetails and mine use 30 degree dovetails. This difference in angles doesn’t cause a problem but the stop above the dovetail in the right photo does. Whether these stones work on your guided sharpener depends on the type of stone holders you have and if you can move them together for the 4″ stones.
August B (verified owner) –
Recently bought these stones as a set as a replacement for my Worksharp precision adjust pro stones that came with the unit. These stones cut just as fast and leave a nicer edge. There are also much finer options available than what came with the unit and what Worksharp currently offers. To make this work I did have to purchase an aftermarket stone holder but it was well worth the upgrade cost. It was a bit a learning curve to dress the stone, but its very easy to do if you have done any lapping work. I would recommend the strops too they are wonderful and in my opinion work better than the traditional leather in the guided sharpening application.
Dallas (verified owner) –
These stones are amazing. I was worried about having to “dress” them but since I have grown to prefer that. It’s amazing when they load up or loose there cutting power, you can just restore the stone to a brand new state whenever you want. After dressing them 2-3 times I see no difference in thickness so I would bet these will last a very long time.