---
product_id: 3691031
title: "DW8310 4-1/2\" x 7/8\" 120 Grit Zirconia Angle Grinder Flap Disc"
brand: "dewalt"
price: "A$17"
currency: AUD
in_stock: true
reviews_count: 13
category: "Dewalt"
url: https://www.desertcart.com.au/products/3691031-dw8310-4-1-2-x-7-8-120-grit-zirconia
store_origin: AU
region: Australia
---

# 15x longer abrasive life 3x faster material removal Optimal 20-25° grinding angle DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc

**Brand:** dewalt
**Price:** A$17
**Availability:** ✅ In Stock

## Summary

> ⚙️ Grind faster, last longer, finish sharper — own the edge of precision!

## Quick Answers

- **What is this?** DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc by dewalt
- **How much does it cost?** A$17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/3691031-dw8310-4-1-2-x-7-8-120-grit-zirconia)

## Best For

- dewalt enthusiasts

## Why This Product

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

## Key Features

- • **Endurance That Outlasts:** Premium abrasive cloth delivers up to 15x longer life—work smarter, not harder.
- • **Precision Grinding Angle:** Type 29 fiberglass backing ensures a perfect 20-25° angle for flawless surface finishing.
- • **Trusted DEWALT Durability:** Backed by a 4.7-star rating and industrial-grade build, this flap disc is your go-to for professional results.
- • **Turbocharged Zirconia Grit:** Experience 3x faster metal removal and power through projects with unmatched speed.
- • **Cool & Consistent Performance:** Runs cooler to prevent disc shredding, keeping your workflow smooth and uninterrupted.

## Overview

The DEWALT DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc combines zirconia grit for 3x faster material removal with a premium abrasive cloth that lasts 15x longer than standard discs. Featuring a Type 29 fiberglass backing for an optimal 20-25° grinding angle, it delivers professional-grade durability and precision for metal grinding tasks. Compatible with DEWALT angle grinders, it supports up to 13,300 RPM for efficient, cool, and consistent performance.

## Description

Product Description Zirconia grit for faster material with type 27 fiberglass backing for optimal grinding angle of 5-15 degrees, allows full use of disc. Premium abrasive cloth for longer life. From the Manufacturer DEWALT DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc

Review: Turns Rusty Metal Into Showroom Shine - This flap disc is the real deal. DEWALT slapped some zirconia grit on a wheel and basically handed you a surface-smoothing weapon of mass reduction. Whether you’re cleaning up welds, smoothing edges, or shaving down that "oops" cut you swore was straight—this thing handles it like a champ. Durability? Let’s just say it outlasted my attention span and my playlist. It cuts smooth, runs cool, and doesn’t shred itself to pieces halfway through a job like those bargain-bin brands. Put it on your grinder and let it work its magic. You’ll be turning rough steel into buttered toast in no time.
Review: Good price and High Quality - I used this along with an angle grinder to sharpen my lawn mower blades. It did a great job and I did not notice any damage to the disc after the job was done. I anticipate being able to reuse this disc for many more blade sharpenings. It was able to successfully sharpen the blade and I knew it was working from all the sparks that were generated at the time. I think this is a great value.

## Features

- Zirconia grit enables 3x faster material removal than fiber resin metal sanding discs
- Premium abrasive cloth provides up to 15 x longer life than fiber resin metal sanding discs
- Type 29 fiberglass backing provides grinding angle of 20-25 degrees

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BPS98O |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #15,678 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #19 in Flap Discs |
| Brand | DEWALT |
| Color | Multi |
| Compatible Devices | Angle Grinder |
| Compatible Disc Grinder Tool Models | DEWALT DCG416B |
| Construction Type | Coated |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,061) |
| Cutting Diameter | 4.5 Inches |
| Date First Available | January 1, 2008 |
| Finish | Brushed |
| Global Trade Identification Number | 00028877310466 |
| Grit Material | Zirconia |
| Grit Number | 120 |
| Grit Type | Fine |
| Included Components | 4-1/2" x 7/8" 120 Grit Zirconia Flap Disc |
| Item Diameter | 4.5 Inches |
| Item Package Quantity | 1 |
| Item Thickness | 0.88 Inches |
| Item Weight | 1.41 ounces |
| Item model number | DW8310 |
| Manufacturer | DEWALT |
| Material | Blend |
| Maximum Rotational Speed | 13300 RPM |
| Measurement System | Metric |
| Number Of Pieces | 1 |
| Part Number | DW8310 |
| Pattern | Solid |
| Product Dimensions | 4.5"L x 4.5"W |
| Recommended Uses For Product | Grinding |
| Shape | Rectangular |
| Size | 7/8-Inch Hub 1 Count |
| Style | 120G |
| UPC | 028877310466 |

## Product Details

- **Brand:** DEWALT
- **Compatible Devices:** Angle Grinder
- **Grit Material:** Zirconia
- **Grit Type:** Fine
- **Product Dimensions:** 4.5"L x 4.5"W

## Images

![DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc - Image 1](https://m.media-amazon.com/images/I/313d84fBCHL.jpg)
![DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc - Image 2](https://m.media-amazon.com/images/I/31T69yrWqZL.jpg)
![DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc - Image 3](https://m.media-amazon.com/images/I/510g8uYYl0L.jpg)
![DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc - Image 4](https://m.media-amazon.com/images/I/51M0VK2IdYL.jpg)
![DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc - Image 5](https://m.media-amazon.com/images/I/61+povFcRtL.jpg)

## Available Options

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

## Questions & Answers

**Q: is it 4-1/2 x 1/4 x 7/8?  I notice it is only described as 4-1/2 x 7/8.  Pls help.  Tks**
A: Yes. 41/2 diameter x 1/4" thick with a 7/8" hole ( bore)

**Q: Is there an adapter to use on a 5/8 inch grinder**
A: should use same arbor back flange and securing nut as an ordinary grinding wheel without threaded arbor, usually comes with grinder

**Q: I want to shave a door down about 3/8 inch.  Would this work for the job?**
A: mostly, this is used for grinding metals. To cut 3/8" wood, you need a saw not a grinder.
Thanks

**Q: OK for glazed tile?**
A: I think it you used it with a variable speed grinder at the slowest speed it would work for cleaning up the edges. For glass I just use a random orbital electric sander with 100 grit, since glaze is essentially glass, I would use caution on a rough grit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Turns Rusty Metal Into Showroom Shine
*by M***T on August 4, 2025*

This flap disc is the real deal. DEWALT slapped some zirconia grit on a wheel and basically handed you a surface-smoothing weapon of mass reduction. Whether you’re cleaning up welds, smoothing edges, or shaving down that "oops" cut you swore was straight—this thing handles it like a champ. Durability? Let’s just say it outlasted my attention span and my playlist. It cuts smooth, runs cool, and doesn’t shred itself to pieces halfway through a job like those bargain-bin brands. Put it on your grinder and let it work its magic. You’ll be turning rough steel into buttered toast in no time.

### ⭐⭐⭐⭐⭐ Good price and High Quality
*by D***D on May 27, 2024*

I used this along with an angle grinder to sharpen my lawn mower blades. It did a great job and I did not notice any damage to the disc after the job was done. I anticipate being able to reuse this disc for many more blade sharpenings. It was able to successfully sharpen the blade and I knew it was working from all the sparks that were generated at the time. I think this is a great value.

### ⭐⭐⭐⭐⭐ Work awesome
*by K***I on July 25, 2025*

These work great. They don't damage wood and really strip the varnish without gumming up

## Frequently Bought Together

- DEWALT DW8310 4-1/2" x 7/8" 120 Grit Zirconia Angle Grinder Flap Disc
- DEWALT 4-1/2 Inch Cut-Off Wheel, Angle Grinder Cutting Disc, General Purpose, 5-Pack (DW8062B5)

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---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-10*