NSK Kyokuha Diamond 400 Stone

The Kyokuha Diamond 400 is a solid coarse stone with a non-porous binding agent and a lightweight plastic base. It works well on various steel types and ceramic knives.

• The description claims that the stone leaves consistent and even scratches.
• The description claims that the stone works well on all steel types, including some of the hardest and wear-resistant steel.
• The description claims that the stone can be used to sharpen ceramic knives.