About Us

AO Sharpening Stone — Authentic Japanese Whetstones

From Japan to the World — Premium Sharpening Stones Made in Japan


At AO Sharpening Stone, we are committed to delivering authentic Japanese sharpening stones to chefs, craftsmen, and sharpening enthusiasts worldwide. Based in Japan, we ship directly from the source, ensuring each whetstone reflects the craftsmanship, consistency, and tradition that define Japanese bladesmithing culture.

Official Authorized Dealer

We are an official retailer of leading Japanese sharpening stone brands:

  • SUEHIRO — makers of the renowned Cerax, Debado, and Gokumyo series.
  • OTANI — Kyoto-based craftsmen behind the respected Arashiyama and Kitayama stones.
  • ALTSTONE — our own brand, inspired by professional sharpening culture and trusted by both chefs and home users.

By working directly with these brands, we remove unnecessary distribution layers and deliver Made-in-Japan whetstones at fair and competitive prices.

Our Mission

Sharpening is more than a routine task — it is a part of cultural heritage. Our mission is to make professional-grade Japanese whetstones accessible to the world, whether you are a master chef, a craftsman, or a dedicated home cook. We believe every blade deserves the precision and authenticity of Japanese stones.

Operated by ALTWAYS LLC

AO Sharpening Stone is operated by ALTWAYS LLC, a Japan-based company dedicated to the international distribution of authentic Japanese sharpening stones. With efficient logistics and a customer-first approach, we connect Japanese craftsmanship with sharpening communities worldwide.

Customer Support

If you have any questions or need assistance, please contact us:

📧 altways@alt-ways.com

We are always happy to help and will do our best to provide quick and reliable support.