---
product_id: 1420849
title: "Knife Sharpening Stone 6 Inch, Aluminum Oxide, Coarse/Fine Grit | Combination double-sided whetstone, Garden tool & dental instrument use, Honing/bench block, 6\"x2\"x1\", Water or oil"
brand: "bora"
price: "¥3718"
currency: JPY
in_stock: true
reviews_count: 13
category: "Bora"
url: https://www.desertcart.jp/products/1420849-knife-sharpening-stone-6-inch-aluminum-oxide-coarse-fine-grit
store_origin: JP
region: Japan
---

# Water/oil lubrication ready Perfect 6-inch bench size Dual-sided grit power Knife Sharpening Stone 6 Inch, Aluminum Oxide, Coarse/Fine Grit | Combination double-sided whetstone, Garden tool & dental instrument use, Honing/bench block, 6"x2"x1", Water or oil

**Brand:** bora
**Price:** ¥3718
**Availability:** ✅ In Stock

## Summary

> 🔪 Sharpen smarter, not harder — edge perfection in your hands!

## Quick Answers

- **What is this?** Knife Sharpening Stone 6 Inch, Aluminum Oxide, Coarse/Fine Grit | Combination double-sided whetstone, Garden tool & dental instrument use, Honing/bench block, 6"x2"x1", Water or oil by bora
- **How much does it cost?** ¥3718 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/1420849-knife-sharpening-stone-6-inch-aluminum-oxide-coarse-fine-grit)

## Best For

- bora enthusiasts

## Why This Product

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

## Key Features

- • **Dual Grit Mastery:** Coarse 150 grit for fast edge restoration, fine 240 grit for razor-sharp precision.
- • **Trusted & Top-Ranked:** Join thousands of pros with a 4.4-star rating and a top 25 spot in sharpening stones.
- • **Bench-Ready Dimensions:** Compact 6" x 2" x 1" size fits perfectly on any workspace for effortless sharpening.
- • **Lubrication Flexibility:** Use water or oil as a lubricant to customize your sharpening experience and extend stone life.
- • **Universal Edge Enhancer:** Sharpen all your knives and tools with one versatile stone—no more juggling multiple sharpeners.

## Overview

The Bora 6-inch aluminum oxide sharpening stone features dual coarse (150 grit) and fine (240 grit) sides, designed for efficient sharpening of all edged tools and knives. Its ideal bench-friendly size and compatibility with water or oil lubrication make it a versatile, durable choice favored by thousands of users, boasting a strong 4.4-star rating and top rankings in its category.

## Description

The BORA 6-Inch aluminum oxide sharpening stone is a 2 sided stone with one coarse grit and one fine grit side. Intended for sharpening all types of edged tools and knives. Ideal size and convenient for bench work.

Review: Very good - Very good,i will buy it again.
Review: Well worth the price - Does the job

## Features

- The Bora 6-inch aluminum oxide sharpening stone is a 2 sided stone: one coarse grit and one fine grit
- Measures 6" x 2" X 1", ideal size for bench work
- Coarse 150 grit side and fine 240 grit side
- Intended for sharpening all types of tools and knives.
- Use water or oil as a lubricant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003Y3BMAW |
| Best Sellers Rank | #19,422 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #22 in Sharpening Stones |
| Brand | BORA |
| Brand Name | BORA |
| Color | Gray |
| Customer Reviews | 4.4 out of 5 stars 2,729 Reviews |
| Global Trade Identification Number | 00814000012129 |
| Grit Type | ['Coarse', 'Fine'] |
| Included Components | 1 Sharpening Stone |
| Item Dimensions L x W x H | 6"L x 2"W x 1"H |
| Item Type Name | Sharpening Stone |
| Item Weight | 4.8 ounces |
| Manufacturer | Bora |
| Manufacturer Part Number | 501057 |
| Manufacturer Warranty Description | 1 year |
| Material | Stone |
| Material Type | Stone |
| Model Number | 501057 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Dimensions | 6"L x 2"W x 1"H |
| UPC | 814000012129 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** BORA
- **Color:** Gray
- **Grit Type:** ['Coarse', 'Fine']
- **Item Weight:** 4.8 ounces
- **Manufacturer:** Bora
- **Material:** Stone
- **Number of Items:** 1
- **Number of Packs:** 1
- **Product Dimensions:** 6"L x 2"W x 1"H
- **Unit Count:** 1 Count

## Images

![Knife Sharpening Stone 6 Inch, Aluminum Oxide, Coarse/Fine Grit | Combination double-sided whetstone, Garden tool & dental instrument use, Honing/bench block, 6"x2"x1", Water or oil - Image 1](https://m.media-amazon.com/images/I/71DmyPoSK1L.jpg)

## Available Options

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

## Questions & Answers

**Q: Can it be used to sharpen a ninja star?**
A: Yes, you could sharpen any flat metal thing on it, just use the edge. Though I'd have to recommend a file or a stick-sharpener for a ninja star just because the nubs are usually too small.

**Q: Ive never used a sharpening stone before any advice so i dont mess up?**
A: First, EVERYONE messes up in the beginning, so just give yourself permission to be imperfect. Start with a knife which is not too precious to "mess up".  
Remember, practice makes perfect.

**Q: I need a sharpener for a knife I use to cut plants out of the ground at the root and for a pair of clippers to cut branches. Will this work for both?**
A: It may, but I think you would be better of with a grinder.  This stone is a finer sharpener and the items your referring to would sharpen much faster with an electric grinder.

**Q: I want to try to sharpen my garden pruners. any thoughts?  i can substitute water or oil or wd-40?  thanks!**
A: The manufacturer rates this product not only for knives but for tools as well. This should be suitable for sharpening garden pruners.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good
*by A***N on May 17, 2026*

Very good,i will buy it again.

### ⭐⭐⭐⭐⭐ Well worth the price
*by L***N on July 25, 2026*

Does the job

### ⭐⭐⭐⭐ Works well enough for the price
*by L***S on July 21, 2017*

Like a number of other people have stated, the quality control on this stone is not always the greatest. Mine arrived intact without any serious flaws. It has pretty smooth corners, but it did have a few small elevations/lips along the edges. I used some 280 grit sandpaper on a flat surface and knocked them down, only took a minute or two. I soaked it in water for a few minutes and used a little mineral oil every now and again. I was taught that a water soaked stone will suspend the oil on top, some people say using oil with a natural or aluminum oxide stone like this should be considered a permanent decision to always use oil. Since I didn't soak it in honing oil, I think it'll be fine to just use water from now on. At these grits I didn't think oil was particularly useful, water was just fine. I learned how to sharpen edges from a Norwegian woodcarver on fine blades and chisels, using a method I have never seen in any YouTube video on sharpening using a stone (I push the blade spine side first, and use a wavy motion). After rotating through both sides of the stone, I stropped my knife on a leather belt. It is now much sharper. My point is there are many ways to sharpen your tools and if you're new, just work on becoming proficient with your method and keeping a consistent angle when you grind. Plenty of resources to help you learn if you're new to using a sharpening stone. The coarser dark side is 150 grit, and the finer light side is 240 grit. I wouldn't use this stone on my nicer kitchen knives, but it's serviceable for my beater pocket knives and would work well on other tools that are harder use like axes or pruning shears and such. The only time I would use this on a fine kitchen knife is if I somehow allowed it to get really dull. I'm going to invest in another stone with finer grits, but I imagine this one will last as long as I don't lose it. Even though it needed a little work on my end to make it ready to go, for the price I'm not bothered. It's a cheap stone which would work well for your heavy duty tools and be serviceable for other finer applications, but I'd really consider looking into finer grits if you want to really put a keen edge on your kitchen knives. This will work for more people, if you're really into putting a razor edge on your blades you're already looking at other products.

## Frequently Bought Together

- Bora 501057 Fine/Coarse Combination Sharpening Stone, Aluminum Oxide Gray, 6"
- Smith's HON1 Honing Solution - 4oz Bottle - Lubricate Sharpening Stones - Built-In Stone Cleaning Agents & Rust Inhibitors - Oil for Tool & Knife Sharpening Stone - Prevents Clogged Pores
- 4" Dual Grit Axe/Hatchet Silicon Carbide Sharpener Multipurpose Sharpening Stone Grinding Wheel

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-11*