Naniwa S2 Super Stone #4002 (Made in Japan)

In short—abrasion. It’s an essential part of what industry does and must do exceptionally well.

Naniwa, a renowned Japanese manufacturer with over 60 years of experience, produces high-quality sharpening stones, diamond tools, and other abrasive products for both industrial and household use. Through continuous innovation and craftsmanship, Naniwa has become one of Japan’s most trusted names in sharpening technology.

The Naniwa S2 Super Stone #4002 is a premium resin-bonded water stone that delivers fast cutting power, smooth feedback, and precise edge refinement. It’s part of Naniwa’s popular Super Stone line, known for its convenience, durability, and consistent performance.

Key Features

Splash and Go
No soaking required. Simply splash water on the surface, and it’s ready to use immediately.

Less Flattening
Resin bonding makes the S2 Super Stones harder and longer-lasting than typical water stones, reducing the need for frequent flattening.

High Abrasive Concentration
A dense distribution of abrasive particles ensures efficient steel removal and quick, effective sharpening.

Specifications

• Origin: Japan

• Grit: #4002 (Fine / Medium-Fine)

• Type: Splash and Go

• Material: Resin Bonded

• Dimensions: 210 × 70 × 20 mm

• Weight: 450 g

Summary
The Naniwa S2 Super Stone #4002 combines professional performance with everyday ease of use. Its splash-and-go design, fast sharpening action, and smooth feel make it ideal for both home sharpeners and professionals seeking high-quality results with minimal maintenance.