---
product_id: 29644707
title: "Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3"
brand: "ultrasharp"
price: "Rp2121953"
currency: IDR
in_stock: true
reviews_count: 10
category: "Ultrasharp"
url: https://www.desertcart.id/products/29644707-ultra-sharp-diamond-sharpening-stone-coarse-300-grit-8-x
store_origin: ID
region: Indonesia
---

# Rapid sharpening for all knives & tools 300 grit coarse diamond surface Precision flatness guaranteed Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3

**Brand:** ultrasharp
**Price:** Rp2121953
**Availability:** ✅ In Stock

## Summary

> 💎 Sharpen your edge, sharpen your hustle.

## Quick Answers

- **What is this?** Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3 by ultrasharp
- **How much does it cost?** Rp2121953 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/29644707-ultra-sharp-diamond-sharpening-stone-coarse-300-grit-8-x)

## Best For

- ultrasharp enthusiasts

## Why This Product

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

## Key Features

- • **Ready, Set, Sharpen:** Comes with complete, easy-to-follow instructions for instant pro results
- • **Risk-Free Razor Ready:** No questions asked 100% satisfaction guarantee—because your edge deserves the best
- • **Flat as Your Ambitions:** Precision flatness guaranteed to keep your blades perfectly aligned
- • **Universal Edge Reviver:** Effortlessly sharpens all knives including ceramic and multi-tool blades
- • **Diamond Tough, Millennial Sharp:** Coarse 300 grit diamond surface for lightning-fast edge restoration

## Overview

The Ultra Sharp Diamond Sharpening Stone features a coarse 300 grit diamond surface measuring 8" x 3", designed for rapid and precise sharpening of all knives and tools, including ceramic blades. Its guaranteed flatness ensures consistent results, while included instructions make professional sharpening accessible. Backed by a 100% satisfaction guarantee, this durable steel and diamond stone is a must-have for maintaining razor-sharp edges with ease.

## Description

Buy Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3: Sharpening Stones - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent stone. - Shipping was fast and the stone was well packed. The stone is perfectly flat and cut’s extremely well. I’ve used this multiple steels and works equally well on all different types. I highly recommend this for repairing edge damage or working on very dull blades. I also use ceramic stones for refining the edge but plan to add a medium and fine diamond stone to the collection after using this one.
Review: Very good stone - The stone comes with instructions for breaking it in as well as which products work well on it for lubrication and maintenance. It does a very good job at flattening my whetstones. I originally got it to course file an old hand planer I got. But I think I need to start with a lower 100 grit. 300 is still taking too much time to get rid of any low spots. Unfortunately this company does not offer a 100 grit size.

## Features

- The Best Value We've Ever Seen!
- 8" x 3". Quickly sharpens all knives and tools (including ceramic knives)
- Coarse 300 grit. Precision flatness guaranteed.
- Complete instructions included
- No Questions Asked 100% Guarantee

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01FPMR8XE |
| Best Sellers Rank | #319,384 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #647 in Sharpening Stones |
| Brand Name | Ultrasharp |
| Color | Silver |
| Customer Reviews | 4.4 4.4 out of 5 stars (112) |
| Grit Type | Coarse |
| Item Dimensions L x W x H | 8"L x 3"W x 0.25"H |
| Item Weight | 2.2 Pounds |
| Manufacturer | Ultra Sharp |
| Material Type | Diamonds, Steel |
| UPC | 617401201723 |

## Product Details

- **Brand:** Ultrasharp
- **Color:** Silver
- **Grit Type:** Coarse
- **Item Weight:** 2.2 Pounds
- **Manufacturer:** Ultra Sharp
- **Material:** Diamonds, Steel
- **Number of Items:** 1
- **Product Dimensions:** 8"L x 3"W x 0.25"H
- **UPC:** 617401201723

## Images

![Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3 - Image 1](https://m.media-amazon.com/images/I/61uF1HZPv6L.jpg)
![Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3 - Image 2](https://m.media-amazon.com/images/I/71Aa86CelgL.jpg)
![Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3 - Image 3](https://m.media-amazon.com/images/I/71oy1GOD+NL.jpg)
![Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3 - Image 4](https://m.media-amazon.com/images/I/71Z6ZCtmAtL.jpg)
![Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3 - Image 5](https://m.media-amazon.com/images/I/71tz8qqCXqL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this come with the non skid holder?**
A: The one that is like $70. Comes with the holder

**Q: Is there grit on both sides?**
A: This is a single-sided stone.  It has grit on one side.  We do have the UltraSharp DC38 combination stone.  It has 300 grit on one side and 1200 grit on the other.  It is ASIN B01FPI7J6O.

**Q: How flat are these plates? Has anyone taken a dial indicator to them to measure?**
A: We check them with both the granite surface plate-jacks-dial indicator method and the machinist's straight edge-feeler gauge method.  I find both methods give the same result.  They typically test less than +/- .001 over the FULL length or width of the stone.   Given that each diamond particle on a 600 grit stone is roughly .001 in size, that is a pretty tight standard.  All Ultra Sharp stones come with a No Questions Asked 100% Guarantee.

**Q: These things slip and slide all over the place when used with recommended lubricant. How to hold in place?**
A: The best way is to use a Sharpening Stone Holder - https://www.amazon.com/dp/B07SHWBLHP?ref=myi_title_dp     They provide knuckle clearance and hold your stone in place while sharpening.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent stone.
*by A***E on July 2, 2023*

Shipping was fast and the stone was well packed. The stone is perfectly flat and cut’s extremely well. I’ve used this multiple steels and works equally well on all different types. I highly recommend this for repairing edge damage or working on very dull blades. I also use ceramic stones for refining the edge but plan to add a medium and fine diamond stone to the collection after using this one.

### ⭐⭐⭐⭐⭐ Very good stone
*by M***E on April 7, 2022*

The stone comes with instructions for breaking it in as well as which products work well on it for lubrication and maintenance. It does a very good job at flattening my whetstones. I originally got it to course file an old hand planer I got. But I think I need to start with a lower 100 grit. 300 is still taking too much time to get rid of any low spots. Unfortunately this company does not offer a 100 grit size.

### ⭐⭐⭐⭐⭐ Fast steel removal
*by A***R on July 16, 2024*

This is my second 300 grit stone from Ultra Sharp. I have the old one for about 4 years and it is begining to wear out after years of heavy use. also, I have one from DMT but I think the Ultra Sharp is much superior to DMT in the coars grits.

## Frequently Bought Together

- Ultra Sharp Diamond Sharpening Stone - Coarse 300 Grit - 8 x 3
- Trend Diamond Abrasive Lapping Fluid, 3.4 fl oz, Blue, Professional Grade Sharpening Fluid for Optimum Performance, DWS/LF/100
- Ultra Sharp Diamond Sharpening Stone Set - Fine/Extra Fine - 8 x 3

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-05-10*