---
product_id: 346396653
title: "4.5\" x 7/8\" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit - 10 Pack"
brand: "benchmark abrasives"
price: "655 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/346396653-4-5-x-7-8-premium-high-density-jumbo-zirconia
store_origin: DK
region: Denmark
---

# Premium Zirconia Grain 40 Grit Coarse Power Type 29 Angled Face 4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit - 10 Pack

**Brand:** benchmark abrasives
**Price:** 655 kr
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit - 10 Pack by benchmark abrasives
- **How much does it cost?** 655 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/346396653-4-5-x-7-8-premium-high-density-jumbo-zirconia)

## Best For

- benchmark abrasives enthusiasts

## Why This Product

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

## Key Features

- • **Durability That Outlasts:** Lasts twice as long as Aluminum Oxide discs, cutting downtime in half.
- • **Jumbo High-Density Design:** 30-60% more grinding surface area means less disc changes and more productivity.
- • **Vibration-Absorbing Backing:** High-quality backing plate reduces fatigue for extended use and smoother finishes.
- • **Engineered for Metal Masters:** Optimized for stainless steel, weld slag removal, and metal fabrication precision.
- • **Unmatched Grinding Efficiency:** Maximize surface contact with 90% abrasive engagement for faster stock removal.

## Overview

Benchmark Abrasives 4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit is a heavy-duty grinding disc designed for angle grinders. Featuring premium zirconia alumina grains and a Type 29 angled face, it delivers 90% abrasive contact for superior grinding speed and efficiency. Engineered to last twice as long as traditional aluminum oxide discs, it excels in weld removal, blending, and metal fabrication tasks while meeting ANSI safety standards.

## Description

4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit - 10 Pack

## Features

- Benchmark Abrasives uses only the highest quality grains and backing material for our flap discs.
- Designed for grinding, blending, sanding and finishing on a wide range of material.
- The #1 choice for welders and metal fabricators.
- Made in accordance with ANSI safety requirements.
- For use on an Angle Grinder

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Benchmark Abrasives |
| Part number | BM-F4.5SZ40T29HD |
| Item Weight | 113 g |
| Product Dimensions | 11.43 x 11.43 x 1.27 cm; 113.4 g |
| Manufacturer reference | BM-F4.5SZ40T29HD |
| Style | Type 29 - Angled Face |
| Material | Premium Zirconia Grains |
| Pattern | 40 Grit |
| Item thickness | 0.88 Inches |
| Power source type | Angle Grinder |
| Item Package Quantity | 1 |
| Grit Rating | 40 |
| Grit Description | Coarse |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Grit material:** Zirconia
- **Product dimensions:** 11.4L x 2.2W centimeters
- **Brand:** Benchmark Abrasives
- **Compatible devices:** Angle Grinder
- **Grit type:** Coarse

## Images

![4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit - 10 Pack - Image 1](https://m.media-amazon.com/images/I/71LKMXpx7gL.jpg)
![4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit - 10 Pack - Image 2](https://m.media-amazon.com/images/I/81xUY4X0PhL.jpg)
![4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit - 10 Pack - Image 3](https://m.media-amazon.com/images/I/61XyKVyc1TL.jpg)
![4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit - 10 Pack - Image 4](https://m.media-amazon.com/images/I/717X5lmuZeL.jpg)
![4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Disc 40 Grit - 10 Pack - Image 5](https://m.media-amazon.com/images/I/61aWSLjg2YL.jpg)

## Questions & Answers

**Q: would these work to remove paint off a concrete floor?**
A: Yes, but if you have a large area to do the discs will get gunked up with paint.  Might want to use paint remover and a metal scraper.

**Q: Are these good for wood?**
A: They are actually VERY good on wood. Much faster than most sanders. You have to have a steady hand though.

**Q: can this be used for sanding a jon boat?**
A: I wouldn't recommend this for sanding a Jon boat as too much pressure with a grinder could penetrate the skin of the boat.

**Q: what grit on these discs would be best to remove light rust and smooth paint on body of a  10 wheel dump truck**
A: I would think 80 grit would do best for the light work you’re describing.

## Frequently Bought Together

- Benchmark Abrasives 4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Discs 4 1/2 for Angle Grinder, Sanding Discs, Finishing - Grinding Wheels 4 1/2 Inch (10 Pack) - 40 Grit
- Benchmark Abrasives Grinder Cut Off Wheels 4 1/2 Inch Aluminum Oxide Thin Type 1 Angle Grinder Cutting Disc for Metal, Stainless Steel - with 7/8" Arbor Hole, Fast Grinder Cutting Wheel - 50 Count
- Benchmark Abrasives 6 Inch Aluminum Oxide Thin Type 1 Grinder Cut Off Wheels for Metal and Stainless Steel .045" Thick 7/8" Arbor, Angle Grinder Cutting Disc, Grinding Cutting Wheel - 25 Count

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**Shop now:** [https://www.desertcart.dk/products/346396653-4-5-x-7-8-premium-high-density-jumbo-zirconia](https://www.desertcart.dk/products/346396653-4-5-x-7-8-premium-high-density-jumbo-zirconia)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-31*