Sharpal Precision Diamond Lapping Plate, 10x4 Inch, Extra Coarse 220 Grit, Durable Sharpening Stone

I have DMT diamond plates, Shapton water stones and glass stones, Norton stones, Jende stones and nanostrops, Spyderco ceramics, Smith, Lansky, and Sharpal stones, slip stones, ceramic stones and rods, Arkansas stones including translucent, leather strops, a whole lot of all other assortment of sharpening gear, and several regular and diamond plate lapping stones from 48 years of sharpening. I got this 4x10 inch lapping plate to try it out on a lark, much like I do with any new sharpening tools these days, and I found that it is amazingly flat, has a substantial thickness, and yes, it gets the job done. I had a ceramic stone with a manufacturer's defect. It had a huge bump on one edge. This was the first stone that I wanted to fix, and this plate took that bump off in a few seconds like it was a soft wood and got that ceramic stone flat enough to polish straight edges on my chisels. The ceramic didn't even remove any of the diamond grit, which even though it was the first job, most other lapping plates lose at least a noticeable amout of grit on the first use, I can say this will last much longer than many more expensive brands. I could spend almost 3 times as much for a similar or slightly longer lasting DMT plate, or go with this one. I like DMT, but I don't need the certified flatness gimic and that price anymore. I am quite happy with this lark of a purchase.