Morihei Hishiboshi 500 Grit Whetstone

The Morihei Hishiboshi 500 Grit Whetstone is a high-performance synthetic whetstone designed for efficient edge repair, bevel setting, and restoring heavily dulled or damaged knives.

Made in Japan, this stone is part of Morihei’s Hishiboshi range, known for its natural stone-like feedback and excellent sharpening feel. It offers a rare balance between cutting speed and control, allowing you to remove steel efficiently while still maintaining precise tactile response under the blade.

At 500 grit, this stone sits in the coarse sharpening range, making it ideal for repairing chips, flattening bevels, or completely rebuilding a worn edge before moving on to refinement stages. Despite its cutting power, it remains controlled and predictable, making it suitable for both professional sharpeners and dedicated home users.

Unlike many synthetic stones, the Hishiboshi series is known for requiring little to no soaking and maintaining consistent performance over long-term use. Its durability and feedback make it a trusted choice for those who want reliability without sacrificing feel.

Measuring 210 x 75 x 26mm, the stone provides a large, stable sharpening surface with substantial thickness for long service life and comfortable use during extended sharpening sessions.

A serious foundation stone for anyone maintaining Japanese kitchen knives and looking for dependable edge restoration performance.

Specifications

• Grit: 500
• Size: 210 x 75 x 26mm
• Made in Japan
• Synthetic whetstone
• Splash-and-go style performance