Naniwa Whetstone #2000 Professional Stone P-320

The Naniwa Professional 2000 sharpening stone is ideal for restoring all your slightly dull knives to peak sharpness.

- Grit: 2000 - Japanese water stone - Dimensions: 210 x 70 x 20 mm - Material: White aluminum oxide - Manufactured at the NANIWA factory in Osaka, Japan

Naniwa Professional Stone Series This is Naniwa’s highest-quality sharpening stone. There are ordinary sharpening stones—and then there are those that become your most prized tools. The Naniwa Professional is one such product. An experienced user looks for a stone that not only sharpens well but also sharpens quickly. The Professional series is so consistent and efficient that it’s genuinely a pleasure to use.

The dimensions are 210 x 70 x 20 mm—almost perfect for most knives and tools. The thickness of this single-sided stone will last through countless sharpening sessions.

Magnesia Bonding What makes the Professional series stand out from other water stones is the bonding agent used between the abrasive grains. It’s called Magnesia Bonding—unlike the resin used in the Naniwa Super Stone series. One of the main benefits of this process is the higher density and consistency of the grains, which gives the Professional series the fastest sharpening capability of all. Experienced users will truly notice the difference.

Soaking is optional for the Professional series. If you choose to soak the stone, do not exceed 15 minutes. After that, your stone is ready to use. We recommend keeping a spray bottle handy to keep the surface moist while sharpening.

Stone Care Naniwa’s Professional stones require more care than your average sharpening stone. Unlike some water stones, these should not be left soaking in water, as prolonged exposure can damage the bonding. After use, allow the stone to air-dry naturally. Do not try to speed up the drying process with heat—let it dry evenly in open air. Store the stone only after it is completely dry.