ATOMA #400 is the most used diamond plate in this series. This COARSE plate works well as a flattening stone, which is the most commonly used task for this plate. ATOMA #400 is also a perfect coarse stone. Durable and long-lasting. ATOMA 400 is almost equivalent to the Naniwa Professional 400 whetstone in roughness. The sharpening results are very similar.
Grit: #400
Long: 210 mm
Wide: 75 mm
Thick: 10 mm for the base + 1 mm for the plate