---
product_id: 112319618
title: "20-Pack Flap Discs, 4-1/2-inch, Arbor Size 7/8-inch, T29 Zirconia Abrasive Grinding Wheel and Flap Sanding Disc, Includes 40/60/80/120 Grits"
brand: "workpro"
price: "B/.111"
currency: PAB
in_stock: true
category: "Workpro"
url: https://www.desertcart.com.pa/products/112319618-20-pack-flap-discs-4-1-2-inch-arbor-size
store_origin: PA
region: Panama
---

# Up to 13,000 RPM high-speed grinding 4.5-inch diameter for versatile use T29 zirconia alumina for extreme durability 20-Pack Flap Discs, 4-1/2-inch, Arbor Size 7/8-inch, T29 Zirconia Abrasive Grinding Wheel and Flap Sanding Disc, Includes 40/60/80/120 Grits

**Brand:** workpro
**Price:** B/.111
**Availability:** ✅ In Stock

## Summary

> ⚡ Grind smarter, not harder — the pro’s choice for flawless finishes!

## Quick Answers

- **What is this?** 20-Pack Flap Discs, 4-1/2-inch, Arbor Size 7/8-inch, T29 Zirconia Abrasive Grinding Wheel and Flap Sanding Disc, Includes 40/60/80/120 Grits by workpro
- **How much does it cost?** B/.111 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/112319618-20-pack-flap-discs-4-1-2-inch-arbor-size)

## Best For

- workpro enthusiasts

## Why This Product

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

## Key Features

- • **Precision T29 Design:** Angled flaps and fiberglass backing deliver smooth edge work and vibration-free grinding.
- • **Unmatched Durability:** Zirconia alumina construction outlasts standard discs, saving you time and money.
- • **All-in-One Grit Variety:** From aggressive 40 grit to fine 120 grit, master every project phase with one set.
- • **High-Speed Compatibility:** Optimized for angle grinders up to 13,000 RPM for professional-grade performance.
- • **Versatile Material Mastery:** Perfect for metal, wood, stone, fiberglass, and rust removal — your go-to multi-surface solution.

## Overview

The WORKPRO 20-Pack Flap Discs feature 4.5-inch T29 zirconia alumina abrasive wheels with a 7/8-inch arbor, designed for high-speed grinders up to 13,000 RPM. This premium set includes 40, 60, 80, and 120 grit discs, offering versatile applications from heavy stock removal to fine finishing on metal, wood, stone, and more. Engineered with a fiberglass backing plate for vibration absorption and durability, these discs deliver professional-grade performance and long-lasting value.

## Description

Buy WORKPRO 20-Pack Flap Discs, 4-1/2-inch, Arbor Size 7/8-inch, T29 Zirconia Abrasive Grinding Wheel and Flap Sanding Disc, Includes 40/60/80/120 Grits: Flap Discs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Meet All Your Needs: This premium flap disc set includes 10 pieces of 40 grit, 5 pieces of 60 grit, 3 pieces of 80 grit, and 2 pieces of 120 grit, which can be used for universal applications, ranging from metal or woodworking, concrete grinding or finishing, stone smoothing or finishing, to rust removal and more. It perfectly offers all you need for your projects
- Extreme Durability and Value: Made of hard zirconia alumina material, which lasts longer than standard aluminum oxide abrasive material, built for a more robust and economical grinding wheel
- T29 Flap Discs with Fiberglass Backing Plate: The T29 flap disc features angled flaps, which can be used for edge-working or contoured applications. These discs are also designed with a greater surface area than flat type for stock removal on horizontal surfaces. Fiberglass creates a strong bond with adhesives and does not contaminate the working surface. The fiberglass backing plate can effectively absorb vibration and bring more stable & efficient grinding
- Great Performance: Each 4.5" x 7/8-Inch arbor size flap disc is compatible with angle grinders operatable of up to 13,000 RPM. Our flap disc set makes it ideal for high-performance blending and stock removal on metals, non-ferrous materials, fiberglass, plastics, wood, and other uneven surfaces
- Premium Flap Disc Set: A top-tier flap disc set with precision and quality in mind, perfect for professionals and DIY enthusiasts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07M6XN561 |
| Best Sellers Rank | #4,956 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Flap Discs |
| Brand Name | WORKPRO |
| Compatible Material | Fiberglass, Stone |
| Construction Type | Grinding |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,105) |
| Grit Material Type | Zirconia Alumina |
| Grit Number | 120 |
| Industry Standard Identifier | 820909753230 |
| Item Diameter | 4.5 Inches |
| Item Dimensions | 4.5 x 0.88 x 0.04 inches |
| Item Dimensions L x W | 4.5"L x 4.5"W |
| Manufacturer | HANZGHOU GREATSTAR INDUSTRIAL CO.LTD |
| Material Type | Aluminum Oxide, Ceramic, NorZon |
| Maximum Rotational Speed | 13000 RPM |
| Model | W124782A |
| Number of Items | 20 |
| Part Number | 820909753230 |
| Recommended Uses For Product | Grinding, Rust Removal |
| Set Name | 20-Pack |
| UPC | 820909753230 |
| Unit Count | 20.0 Count |

## Product Details

- **Brand:** WORKPRO
- **Construction Type:** Grinding
- **Grit Material:** Zirconia Alumina
- **Grit Number:** 120
- **Product Dimensions:** 4.5"L x 4.5"W

## Images

![20-Pack Flap Discs, 4-1/2-inch, Arbor Size 7/8-inch, T29 Zirconia Abrasive Grinding Wheel and Flap Sanding Disc, Includes 40/60/80/120 Grits - Image 1](https://m.media-amazon.com/images/I/81ZsNM4j1gL.jpg)

## Available Options

This product comes in different **Unit Count, Style** options.

## Questions & Answers

**Q: Is this good for helping to rough shape wood? thx**
A: Dear customer, these flap discs are good for finishing rough shape wood.

**Q: Dose it come in a smaller arbor size?**
A: Now we only have flap disc in 4 1/2 x 7/8 inch.

**Q: Will these remove paint from a concrete porch?**
A: Yes

**Q: Does anyone know of an adapter to put these flap discs on a rotozip (1/4” shank)?**
A: Dear customer, for safety reasons, we don't recommend to use these 7/8'' arbor flap discs on a rotozip with 1/4'' shank.

## Frequently Bought Together

- WORKPRO 20-Pack Flap Discs, 4-1/2-inch, Arbor Size 7/8-inch, T29 Zirconia Abrasive Grinding Wheel and Flap Sanding Disc, Includes 40/60/80/120 Grits
- WORKPRO 20-Pack Cut-Off Wheels, 4-1/2 x 7/8-inch Metal&Stainless Steel Cutting Wheel, Thin Metal Cutting Disc for Angle Grinder
- DEWALT 20V MAX* Angle Grinder Tool, Tool Only (DCG413B)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-07-02*