Review on ✨ Coarse Grade Atoma Diamond Sharpener #140 by Lawrence Feldman

I'm giving 4 stars as I don't have that many. I lightly lapped the backs of 3 very hard Japanese planes with an Atoma 140 plate and then repeated the process with a high carbon steel rag and carbide powder after tapping Uras on all 3. Then I pre-sanded their bevels. approach 30° before next sanding with the new Shapton 1000 ceramic waterstone before proceeding with the Shapton 5000 ceramic waterstone Sanding using the same method as planing. If the Atoma plate holds up and there is enough left to level all my stones I will consider my money well spent and will edit this review to 5 stars. Then eventually buy another one. Edit: After a month of hard lapping and beveling many Japanese chisels I'm increasing my rating to 5 stars as the 140 grit plate still works effectively. I also line up a pair of Shapton hard ceramic stones and use a Veritas Mk2 template on the Atoma without damaging the template plate or roller. Today I ordered Atomas 400 and 1200 in addition to 140 and can honestly recommend them.