---
product_id: 204332777
title: "Naniwa NA-0040 New Arata Professional Rough Whetstone #400 8.3 x 2.8 x 0.6 inches (210 x 70 x 15 mm)"
brand: "naniwa"
price: "$126.58"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/204332777-naniwa-na-0040-new-arata-professional-rough-whetstone-400-8
store_origin: US
region: United States of America
---

# Fast sharpening on hardened steel Compact 8.3 x 2.8 x 0.6 inches Premium Japanese grindstone Naniwa NA-0040 New Arata Professional Rough Whetstone #400 8.3 x 2.8 x 0.6 inches (210 x 70 x 15 mm)

**Brand:** naniwa
**Price:** $126.58
**Availability:** ✅ In Stock

## Summary

> 🪓 Sharpen like a pro, cut like a boss!

## Quick Answers

- **What is this?** Naniwa NA-0040 New Arata Professional Rough Whetstone #400 8.3 x 2.8 x 0.6 inches (210 x 70 x 15 mm) by naniwa
- **How much does it cost?** $126.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/204332777-naniwa-na-0040-new-arata-professional-rough-whetstone-400-8)

## Best For

- naniwa enthusiasts

## Why This Product

- Trusted naniwa brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Portable:** Sized for convenience and includes a storage case for sharpening anywhere, anytime.
- • **Durable & Reliable:** Built to last with premium stone material, ensuring consistent performance over time.
- • **Rugged #400 Grit Power:** Coarse grit designed to tackle even the toughest hardened steel blades effortlessly.
- • **Artisan-Crafted Precision:** Experience authentic Japanese sharpening mastery with every stroke.
- • **Versatile Sharpening Tool:** Perfect for kitchen knives, scissors, chisels, and more—your all-in-one blade revival solution.

## Overview

The Naniwa NA-0040 New Arata Professional Rough Whetstone #400 is a high-quality Japanese sharpening stone designed for fast and effective grinding of hardened steel blades. Measuring 8.3 x 2.8 x 0.6 inches, it features a coarse #400 grit ideal for restoring dull knives, scissors, chisels, and other precision tools. Lightweight and portable, it comes with a storage case, making it perfect for professionals and enthusiasts seeking reliable, artisan-grade sharpening performance.

## Description

Japanese grindstone that is made with high quality artisans. Even with hardened steel materials that were difficult to sharpen with conventional artificial whetstones can be used to make blades faster. Includes a storage case for both a sharpening table.

## Features

- Grit size: #400
- Size: Length 8.3 x Width 2.8 x Thickness 0.6 inches (210 x 70
- Uses: For grinding kitchen knives, knives, scissors, stainless steel blades, hammers, chisels, chisels, and other precision cutlery

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Stone |
| Brand | Naniwa |
| Color | Green |
| Product Dimensions | 9.45"L x 3.19"W x 1.3"H |
| Item Weight | 1.58 Pounds |
| Grit Type | Coarse |
| Number of Items | 1 |
| Manufacturer | ナニワ研磨工業 |
| Part Number | NA-0040 |
| Item Weight | 1.58 pounds |
| Item model number | NA-0040 |
| Is Discontinued By Manufacturer | No |
| Style | Rough Whetstone #400 |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Grit Rating | 400 |
| Included Components | No |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Stone
- **Brand:** Naniwa
- **Color:** Green
- **Product Dimensions:** 9.45"L x 3.19"W x 1.3"H
- **Item Weight:** 1.58 Pounds
- **Grit Type:** Coarse
- **Number of Items:** 1
- **Manufacturer:** ナニワ研磨工業

## Images

![Naniwa NA-0040 New Arata Professional Rough Whetstone #400 8.3 x 2.8 x 0.6 inches (210 x 70 x 15 mm) - Image 1](https://m.media-amazon.com/images/I/61SNb8ZlSnL.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- Naniwa NA-0040 New Arata Professional Rough Whetstone #400 8.3 x 2.8 x 0.6 inches (210 x 70 x 15 mm)
- Naniwa NA-0300 Goken New Professional Finishing Whetstone #3000, 8.3 x 2.8 x 0.6 inches (210 x 70 x 15 mm)
- Naniwa Straightening Stone IO-1142 Grit 220

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**Shop now:** [https://www.desertcart.us/products/204332777-naniwa-na-0040-new-arata-professional-rough-whetstone-400-8](https://www.desertcart.us/products/204332777-naniwa-na-0040-new-arata-professional-rough-whetstone-400-8)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-09*