---
product_id: 7202587
title: "Spyderco Ultra Fine Benchstone Sharpening Stone, 3 x 8 in Ceramic, 306UF"
brand: "spyderco"
price: "€ 294.19"
currency: EUR
in_stock: true
category: "Spyderco"
url: https://www.desertcart.fr/products/7202587-spyderco-ultra-fine-benchstone-sharpening-stone-3-x-8-in
store_origin: FR
region: France
---

# 3x8 inch large surface 3000°F kiln-fired ceramic Oil & water-free use Spyderco Ultra Fine Benchstone Sharpening Stone, 3 x 8 in Ceramic, 306UF

**Brand:** spyderco
**Price:** € 294.19
**Availability:** ✅ In Stock

## Summary

> 🔪 Sharpen Like a Pro, Anywhere, Anytime!

## Quick Answers

- **What is this?** Spyderco Ultra Fine Benchstone Sharpening Stone, 3 x 8 in Ceramic, 306UF by spyderco
- **How much does it cost?** € 294.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/7202587-spyderco-ultra-fine-benchstone-sharpening-stone-3-x-8-in)

## Best For

- spyderco enthusiasts

## Why This Product

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

## Key Features

- • **Grip & Go Portability:** Includes suede sleeve for slip-free sharpening and easy transport—take your edge anywhere.
- • **Effortless Maintenance:** No oils or lubricants needed—dry sharpening simplifies your workflow and cleanup.
- • **Proudly Made in the USA:** Crafted with synthetic sapphire ceramic for unmatched durability and consistent performance.
- • **Sharpen Big, Sharpen Bold:** Generous 3" x 8" surface perfect for large blades, woodworking tools, and even ski edges.
- • **Maximize Your Edge Precision:** Ultra-fine ceramic grit delivers a razor-sharp, hair-popping finish for professional-grade tools.

## Overview

The Spyderco Ultra Fine Benchstone is a premium 3" x 8" ceramic sharpening stone made in the USA, kiln-fired at 3000°F using synthetic sapphire alumina for exceptional hardness (Mohs 9). Designed for dry use without oils or water, it offers an ultra-fine grit surface ideal for large blades, woodworking tools, and ski edges. Lightweight and portable with a suede sleeve for grip, it delivers professional-level edge refinement with minimal fuss.

## Description

Spyderco's ultra-fine ceramic benchstone is flat, thin and ultra smooth for professionally finishing and sharpening wide tools like chisels, large blades, wood-working equipment, plane irons, even ski and snowboard edges. Made from Alumina Ceramic, it is manufactured in the United States using a process where a binding agent is combined with Alumina particles that are actually synthetic sapphires. The stone is shaped then kiln fired to temperature of 3000 degrees F (1649-degreesC). Alumina ceramic stones measure 9 on the Mohs hardness scale (out of 10) and don't require lubricants like oil or water for use. The ultra-fine grit stone tightens and smoothes the cutting edge's scratch pattern for an even keener, hair popping edge. The stone is thin and light enough for hand held use, taking the sharpening surface directly to larger items. We recommend when tabletop sharpening, using the stone on top of it's' suede carrying case for slip free use. To clean the stone, wash it in fresh water and scrub with a powdered abrasive cleaner and a scouring pad. Rinse and air dry.

## Features

- Large 3" x 8" Sharpening Surface - Spyderco’s 3x8-inch benchstones offer large, flat abrasive surfaces that are ideal for sharpening plane blades, drawknives, and other large cutting tools.
- Oil and Water-Free Usage: Designed to be used dry, this benchstone does not require the use of oils or lubricants, simplifying the sharpening process and maintenance.
- Large Sharpening Surface: Measures 8 inches in length and 3 inches in width, offering an extra-wide surface ideal for large knives, woodworking tools, and even ski and snowboard edges.
- Portable and Protective Sleeve: Comes with a suede carrying case that can be used under the stone for grip during sharpening, enhancing portability and ease of use.
- Made in the USA: This ultra-fine grit sharpening stone is manufactured in the USA, ensuring high quality and reliable performance for professional and amateur use alike????????.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000Z0RW1A |
| Best Sellers Rank | #580,559 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,107 in Sharpening Stones |
| Brand Name | Spyderco |
| Color | Multicoloured |
| Customer Reviews | 4.5 4.5 out of 5 stars (105) |
| Global Trade Identification Number | 00716104640447 |
| Grit Type | Fine Grit,Ultra |
| Included Components | STONE AND SLEEVE |
| Item Dimensions L x W x H | 8"L x 3"W x 0.31"H |
| Item Type Name | Benchstone Ultra Fine 3" X 8" |
| Item Weight | 1.2 pounds |
| Manufacturer | Spyderco |
| Manufacturer Part Number | 306UF |
| Manufacturer Warranty Description | SEE MANUFACTURER |
| Material Type | Ceramic |
| Model Number | 306UF |
| Number of Items | 1 |
| Number of Packs | 1 |
| UPC | 716104640447 000000120609 |

## Product Details

- **Brand:** Spyderco
- **Color:** Multicoloured
- **Grit Type:** Fine Grit,Ultra
- **Item Highlight:** White Stone, Suede Carrying Case, Fine Sharpening Surface, Benchstone Design
- **Item Weight:** 1.2 pounds
- **Manufacturer:** Spyderco
- **Material:** Ceramic
- **Number of Items:** 1
- **Number of Packs:** 1
- **Product Dimensions:** 8"L x 3"W x 0.31"H

## Images

![Spyderco Ultra Fine Benchstone Sharpening Stone, 3 x 8 in Ceramic, 306UF - Image 1](https://m.media-amazon.com/images/I/61fng3wy9GL.jpg)
![Spyderco Ultra Fine Benchstone Sharpening Stone, 3 x 8 in Ceramic, 306UF - Image 2](https://m.media-amazon.com/images/I/71rEBfC5VFL.jpg)
![Spyderco Ultra Fine Benchstone Sharpening Stone, 3 x 8 in Ceramic, 306UF - Image 3](https://m.media-amazon.com/images/I/61iFBOTNT7L.jpg)
![Spyderco Ultra Fine Benchstone Sharpening Stone, 3 x 8 in Ceramic, 306UF - Image 4](https://m.media-amazon.com/images/I/61-jNDd0sBL.jpg)

## Questions & Answers

**Q: What grit is this stone?**
A: As a disclaimer, I do proclaim this to be absolute.  What I understood was that the stone, as it is ceramic is measured in microns.  This stone I saw advertised as 3 micron which converts to 8,000 grit.   I have included a link to share with you the conversion table.  https://www.gessweincanada.com/category-s/11328.htm

**Q: How does this stone compare to Black Arkansas stone ?**
A: I suspect it is as fine or finer than a hard Arkansas stone. I love  mine. I still use a leather strop for the final honing  which is probably overkill based on how fine the spider stone is.

**Q: Will this stone work on my Japanese knives at 62 rockwell?**
A: I use this for my straight razor

**Q: So, I see some say it isn't perfectly flat and they use different methods coarse DMT, etc.  to flatten it, so won't that "rough" it up too much?**
A: I had the same concern as you so did not use a dmt diamond to grind the ceramic flat. The many tiny hills and valleys on the ceramic surface are very apparent after sharpening a knife because the tops of the hills get dirty but the valleys do not. But even without being perfectly flat the ceramic works well. It would be nice to do a side by side test to see if flattening the ceramic gives a sharper edge or not.

## Frequently Bought Together

- Spyderco Ultra Fine Benchstone Sharpening Stone - 3" x 8" Ceramic Stone, Professional Grade, with Suede Carrying Case - Model 306UF
- Spyderco 303MF 1" by 5" DoubleStuff Sharpening Stone - Medium & Fine Sided and Includes Protective Case - 303MF

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-08-21*