NANIWA

The NANIWA Polar Bear sharpening stones represent the excellence of Japanese sharpening craftsmanship — precision, patience and performance in every stroke.

Engineered in Japan, these premium dual-grit waterstones (#300 / #1000) are designed to handle the complete sharpening process in one compact stone. The #300 side quickly repairs damaged or dull edges, while the #1000 side refines and polishes the blade to razor-sharp perfection.

Whether you are restoring heavily worn butcher knives or maintaining delicate kitchen blades, NANIWA Polar Bear stones provide the ideal balance between aggressive material removal and refined edge finishing.

Built for durability and consistency, this stone is trusted by professional chefs, butchers and sharpening enthusiasts who refuse to compromise on edge quality.