---
product_id: 285226329
title: "Norton 69936687444 Flattening Stone With Diagonal Grooves For Waterstones, Coarse Grit Silicon Carbide Abrasive, Superbly Flat With Hard Bond, Plastic Case, 9\" x 3\" x 3/4\""
brand: "norton"
price: "฿8140"
currency: THB
in_stock: false
reviews_count: 5
category: "Norton"
url: https://www.desertcart.co.th/products/285226329-norton-69936687444-flattening-stone-with-diagonal-grooves-for-waterstones-coarse
store_origin: TH
region: Thailand
---

# Coarse-grit silicon carbide power Precisely flat hard bond Diagonal grooves for debris flow Norton 69936687444 Flattening Stone With Diagonal Grooves For Waterstones, Coarse Grit Silicon Carbide Abrasive, Superbly Flat With Hard Bond, Plastic Case, 9" x 3" x 3/4"

**Brand:** norton
**Price:** ฿8140
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Keep your edge sharp, your stones flatter, and your craft unstoppable!

## Quick Answers

- **What is this?** Norton 69936687444 Flattening Stone With Diagonal Grooves For Waterstones, Coarse Grit Silicon Carbide Abrasive, Superbly Flat With Hard Bond, Plastic Case, 9" x 3" x 3/4" by norton
- **How much does it cost?** ฿8140 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/285226329-norton-69936687444-flattening-stone-with-diagonal-grooves-for-waterstones-coarse)

## Best For

- norton enthusiasts

## Why This Product

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

## Key Features

- • **Smart Groove Design:** Diagonal channels efficiently clear slurry and debris, speeding up the flattening process without clogging.
- • **Ideal Size for Versatility:** Compact 9" x 3" x 3/4" dimensions fit all smaller waterstones, making it your go-to maintenance tool.
- • **Maximum Cutting Efficiency:** Coarse silicon carbide grit delivers aggressive material removal for rapid stone resurfacing.
- • **Protective Storage Included:** Comes with a durable plastic case and clear instructions, so your flattening stone stays pristine and ready.
- • **Unmatched Flatness Precision:** Engineered with a hard bond to keep your waterstones perfectly level, ensuring flawless sharpening every time.

## Overview

The Norton 69936687444 Flattening Stone is a precision-engineered coarse silicon carbide abrasive block designed to maintain perfectly flat waterstone surfaces. Featuring a hard bond for durability and diagonal grooves for efficient slurry removal, this 9" x 3" x 3/4" stone ensures rapid, effective flattening of waterstones. Packaged with a protective plastic case and instructions, it’s an essential tool for professionals and enthusiasts committed to superior sharpening performance.

## Description

The Norton flattening stone for waterstones is precisely level, with a hard bond, to maintain the flat surface of waterstones; coarse-grit silicon carbide gives it maximum cutting power, and diagonal grooves on one face provide channels for material removal. This flattening stone measures 3/4 x 9 x 3 inches (H x W x D), which makes it suitable for flattening any waterstone with lesser dimensions. (H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.) The plastic case protects and stores the stone.Flattening stones are abrasive rectangular blocks used to smooth the sharpening surfaces and flatten the depressions that repeated use wears in water-lubricated sharpening stones (waterstones), to prepare them for effective sharpening of knives or tools. Waterstones have a finer grit and softer bond than oilstones, and use water as the lubricant to develop a slurry, a thin paste of abrasive grains and water that removes metal with less pressure than oilstone requires. Because of these characteristics, waterstones wear concave with use, and should be flattened periodically for best performance.Norton Abrasives manufactures sanding, grinding, and polishing abrasives, and has been located in the United States since 1885. Norton, now a brand of Saint-Gobain, meets ISO 9000 and 14001 certification for quality and environmental management standards.What’s in the Box?Flattening stonePlastic caseInstructions

Review: It quickly smoothed out my wetstone, just as advertised. Very happy with it.
Review: I'm an old-timer, well into my sixth decade, and also a third generation craftsman. My dad and granddad both had oil stones and by choice, and also virtue of my occupation in the metal trades, I have acquired well over a dozen different oil stones, some of which have suffered neglect. I was torn between this product and a diamond plate but settled on this Norton Flattening Stone. Man was I ever surprised at how well this thing works - and fairly quickly too. My first test was on an India Oil Stone and I used it dry, without any water. It was easy to see how the diagonal groves filled with dust from the India stone. The grooves clean out easily with an old shoe brush. BTW, all oil stones were pre-cleaned with brake cleaner prior to grinding. I make plenty of custom stones for hard to reach areas and this flattening stone works wonders for dressing a surface flat after a rough cut with a diamond wheel. Subsequent to my dry test, most all of my work has been done with water and a few drops of dish soap in an old steel baking pan. If you are working in your wife's kitchen sink you better protect it from the grit which will ruin porcelain or stainless. There seems to be some obsession in the comments regarding the degree of flatness. This seems odd to me but whatever. Oil stones and water stones are for hand sharpening - it's not a precision surface grinding operation, and the advantage here is that the craftsman can (if he or she chooses to) use a little "English" on one side of the stone or the other. To each his own I suppose. Negatives: it comes in a cheesy thin plastic box which does not allow for venting of the moisture in any meaningful way. If they must use plastic, use a proper "alloy".

## Features

- Precisely level with a hard bond, to flatten and refresh waterstone surfaces
- Coarse-grit silicon carbide for maximum cutting power
- Diagonal grooves provide channels for material removal during the flattening process
- 3/4 x 9 x 3 inch (H x W x D) size is suitable for flattening any waterstone with lesser dimensions
- Plastic case for protective storage, and instructions for use and maintenance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00067ZSJ0 |
| Item model number | 69936687444 |
| Manufacturer | St. Gobain Abrasives |
| Product Dimensions | 22.86 x 7.62 x 1.91 cm; 612.35 g |

## Product Details

- **Brand:** Norton
- **Colour:** Gray
- **Grit type:** Coarse
- **Item weight:** 1.35 Pounds
- **Material:** Carborundum

## Images

![Norton 69936687444 Flattening Stone With Diagonal Grooves For Waterstones, Coarse Grit Silicon Carbide Abrasive, Superbly Flat With Hard Bond, Plastic Case, 9" x 3" x 3/4" - Image 1](https://m.media-amazon.com/images/I/31W+cFp9FZL.jpg)
![Norton 69936687444 Flattening Stone With Diagonal Grooves For Waterstones, Coarse Grit Silicon Carbide Abrasive, Superbly Flat With Hard Bond, Plastic Case, 9" x 3" x 3/4" - Image 2](https://m.media-amazon.com/images/I/41GNyiKaUBL.jpg)
![Norton 69936687444 Flattening Stone With Diagonal Grooves For Waterstones, Coarse Grit Silicon Carbide Abrasive, Superbly Flat With Hard Bond, Plastic Case, 9" x 3" x 3/4" - Image 3](https://m.media-amazon.com/images/I/41YHcK4LfvL.jpg)
![Norton 69936687444 Flattening Stone With Diagonal Grooves For Waterstones, Coarse Grit Silicon Carbide Abrasive, Superbly Flat With Hard Bond, Plastic Case, 9" x 3" x 3/4" - Image 4](https://m.media-amazon.com/images/I/710iXKvgE7L.jpg)
![Norton 69936687444 Flattening Stone With Diagonal Grooves For Waterstones, Coarse Grit Silicon Carbide Abrasive, Superbly Flat With Hard Bond, Plastic Case, 9" x 3" x 3/4" - Image 5](https://m.media-amazon.com/images/I/81XcaGoJ1RL.jpg)

## Questions & Answers

**Q: Has anyone found this to properly flatten #3000 wetstones?**
A: I used it on a 10000 wetstone and it worked fine

**Q: Can I use this on any grit from 8000 and below?**
A: I have not had any problems with using it on 8000 grit and below

**Q: do you use water while flattening oilstones?**
A: Yes. If you can under running water. I soak the flattening stone along with the other stones I am using that day.

**Q: Can this be used to lap or flatten a set of Venev diamond stones from Gritomatic?**
A: i don't think so. the one i got wouldn't even flatten a couple of plain water stones without going extremely concave. i returned it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***R on 20 August 2022*

It quickly smoothed out my wetstone, just as advertised. Very happy with it.

### ⭐⭐⭐⭐⭐ Review
*by D***C on 29 October 2019*

I'm an old-timer, well into my sixth decade, and also a third generation craftsman. My dad and granddad both had oil stones and by choice, and also virtue of my occupation in the metal trades, I have acquired well over a dozen different oil stones, some of which have suffered neglect. I was torn between this product and a diamond plate but settled on this Norton Flattening Stone. Man was I ever surprised at how well this thing works - and fairly quickly too. My first test was on an India Oil Stone and I used it dry, without any water. It was easy to see how the diagonal groves filled with dust from the India stone. The grooves clean out easily with an old shoe brush. BTW, all oil stones were pre-cleaned with brake cleaner prior to grinding. I make plenty of custom stones for hard to reach areas and this flattening stone works wonders for dressing a surface flat after a rough cut with a diamond wheel. Subsequent to my dry test, most all of my work has been done with water and a few drops of dish soap in an old steel baking pan. If you are working in your wife's kitchen sink you better protect it from the grit which will ruin porcelain or stainless. There seems to be some obsession in the comments regarding the degree of flatness. This seems odd to me but whatever. Oil stones and water stones are for hand sharpening - it's not a precision surface grinding operation, and the advantage here is that the craftsman can (if he or she chooses to) use a little "English" on one side of the stone or the other. To each his own I suppose. Negatives: it comes in a cheesy thin plastic box which does not allow for venting of the moisture in any meaningful way. If they must use plastic, use a proper "alloy".

### ⭐⭐⭐⭐ Review
*by K***O on 5 February 2022*

Instructions were included. Flattened my slightly saddled 450 grit whetstone. Took abt 15min. The edges of the whetstone lost small little chips, but I think that should not affect its use. Like the fact that it comes with a storage case. Didn't like the fact that Amazon stuck a label on it with a full wraparound of wide cellophane tape that left a sticky residue all over. I ended up cellophane taping the container so that it doesnt stick to other things I stack on it in storage.

## Frequently Bought Together

- Norton Waterstone Flatstone, Flattening Stone with Stone Holder and Case, Pack of 1
- Wedgek AGM Angle Wedges for Sharpening Knives 10 to 20 degrees, Blue
- KING Whetstone, 6000 Grit

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-22*