ATOMA Diamond

Atoma Diamond Sharpening Stones are premium-quality monocrystalline diamond plates made in Japan, renowned for their excellent sharpening performance. Their full-size dimensions (75 x 210 mm) match those of standard whetstones, making them considerably more efficient than narrower diamond plates.

Each plate consists of evenly distributed diamonds bonded to a metal surface, which is then affixed to a ~10 mm thick aluminum base. Though technically not “stones,” their durability and cutting power make them ideal for both home kitchens and professional sharpening tasks. In domestic use, an Atoma plate can last virtually forever and is also proven to work well on industrial tools.

Atoma plates are especially well-suited for flattening water stones. Thanks to the precise, regular diamond layout, they resist sticking to the stone being flattened. While all grits are capable of flattening and sharpening, grits 140 and 400 typically deliver the best results.

Note: Brand new Atoma plates may feel rougher than their grit rating suggests, but once the sharpest particles wear down slightly, they maintain their performance for a long time.

Why Choose Atoma Diamond Plates:

• Extremely durable and long-lasting
• No flattening required
• Uniform diamond layout – great for small tools
• Superior results compared to traditional diamond plates
• Easier angle control across the entire blade
• Excellent for flattening Japanese whetstones

Grit Guide:

• 140 – Very Coarse
• 400 – Coarse
• 600 – Coarse
• 1200 – Fine

Usage Tip:

Always use water when sharpening with Atoma diamond plates. This reduces friction, improves results, and extends the life of the plate. Avoid using excessive pressure during sharpening.