Atoma 400 Grit Diamond Plate, 210x75mm

The atoma series lives up to the hype.

Works beautifully for flattening my stones, and the side of it makes a perfect straightedge for checking their flatness.

I use the Atoma 400 Grit Diamond Plate as a dual purpose plate.
First, I use it to start the sharpening process on dull knives. The Atoma 400 forms a burr very efficiently and does not require flattening after use.
Second, I use it to flatten my whetstones, leaves a nice smooth finish.
An unexpected benefit was that it fits int my Shapton Glass Stone Holder.

Very happy customer
Garth

Super happy with how fast this cuts. Bought it for stone flattening and for quick removal of material.

I use it for lapping my shapton kuromaku stones. It works great, except it is not long enough, but this is not a tool's fault, more like mine. It cannot make my stones flat across the length, but stones are very flag across the width. Otherwise I'm pretty happy with it, planning to get ATOMA-140 when it is back in stock.