Material: Diamond lapped on aluminum
Grit: 400 (Coarse)
Dimensions: 8 1/4" x 3" x 3/8" ht (21cm x 7.5cm x 1.1cm)
"Atoma Economy" by Tsuboman is the economical choice for diamond sharpening plates. Unlike whetstones and other ceramic sharpening stones, a diamond plate will not wear down or concave over time. You also don't need water to sharpen your knives. Atoma will remove steel very quickly, and the plate will never clog because it is made using a special patented dispersion technique. You can even use it to flatten sharpening stones! Use this coarse, 400 grit plate to fix minor chips and to recreate an edge on your blade.
The Atoma 400 diamond plate is suitable for flattening stones as coarse as 400 up to 8000 grit. It does not cease to be effective above 8000 grit, however the large diamond particles will put large scratches in the stone which will be more noticeable the harder and finer the stone is. It may be used with finer grit stones in conjunction with a synthetic nagura in order to condition the surface after flattening. It's worth noting that this is just a suggestion. We have used the Atoma 400 grit to flatten up to the Shapton Glass 30k stone and had no issues aside from the surface having a visible scratch pattern. The true worry with flattening harder stones with diamond plates is embedding loose diamonds into the stone. This becomes less of an issue as the plate is worn in but care should be taken with new plates.
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