---
product_id: 96731870
title: "Benchmark Abrasives 4.5\" x 7/8\" Zirconia Type 27 Flap Discs, 40 Grit"
brand: "benchmark abrasives"
price: "€ 281.12"
currency: EUR
in_stock: true
reviews_count: 12
category: "Benchmark Abrasives"
url: https://www.desertcart.gr/products/96731870-benchmark-abrasives-4-5-x-7-8-zirconia-type-27
store_origin: GR
region: Greece
---

# 7/8” steel arbor fit 13,000 RPM max speed Premium European zirconia grains Benchmark Abrasives 4.5" x 7/8" Zirconia Type 27 Flap Discs, 40 Grit

**Brand:** benchmark abrasives
**Price:** € 281.12
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your grind game with pro-grade power and precision!

## Quick Answers

- **What is this?** Benchmark Abrasives 4.5" x 7/8" Zirconia Type 27 Flap Discs, 40 Grit by benchmark abrasives
- **How much does it cost?** € 281.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/96731870-benchmark-abrasives-4-5-x-7-8-zirconia-type-27)

## 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

- • **Versatile Multi-Tasker:** From rust removal to beveling, perfect for automotive, welding, and fabrication pros.
- • **Universal Compatibility:** Fits all major 4.5” angle grinders—Dewalt, Milwaukee, Makita & more.
- • **Certified Quality Assurance:** Exceeds ANSI & EU standards—trusted by professionals for flawless results.
- • **Industrial-Grade Durability:** Crafted with premium zirconia alumina for long-lasting, consistent abrasion.
- • **Unmatched Speed & Precision:** Max 13,000 RPM for rapid, smooth stock removal and finishing.

## Overview

Benchmark Abrasives 4.5" x 7/8" Jumbo Zirconia Type 27 Flap Discs deliver industrial-strength performance with a max speed of 13,000 RPM and a durable steel arbor. Made from premium European zirconia alumina grains, these 40 grit discs ensure efficient stock removal, rust removal, and finishing across multiple industries. Compatible with all major 4.5" angle grinders, they meet rigorous ANSI and EU standards, offering professionals and DIYers a reliable, versatile tool for flawless surface prep and finishing.

## Description

Buy Benchmark Abrasives 4.5" x 7/8" Zirconia Type 27 Flap Discs, 40 Grit | Jumbo High Density Sanding and Finishing Wheels for Angle Grinder, 10-Count: Flap Discs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great product! - Great product for the price!
Review: Great product and value! - Great value! Great product, lasting almost as long as, and almost as good as, the normal name brand we have normally used, but at a good, discounted price compared to name brand. We are a production commercial truck repair shop and will be using this product going forward.

## Features

- HIGH-DENSITY JUMBO DESIGN: Type 27 flap discs with a high-density jumbo layout support surface blending, beveling, grinding, deburring, and edge chamfering. Flat profile seats flush on workpieces for controlled material removal, ideal for professionals and DIY use
- EUROPEAN ZIRCONIA CLOTH: Built with premium zirconia cloth featuring uniform particle size and a superior ingredient blend for consistent and reliable abrasion. Quality abrasive backing pairs with durable flaps for enhanced cutting efficiency and durability
- MULTI-MATERIAL USE: Suitable for cast iron, steel, stainless steel, titanium, fiberglass, wood, and more to match varied shop needs. Works in automotive, transportation, mining, shipbuilding, construction, welding, foundries, and fabrication
- WIDE GRINDER COMPATIBILITY: Fits Dewalt, Milwaukee, Makita, Bosch, Metabo, Ryobi, Black & Decker, Kobalt, Craftsman, Skil, Porter Cable, Ridgid, and any 7/8 in arbor angle grinder. Compatible with 4 1/2 in grinders for a precise and secure fit
- INDUSTRIAL STANDARD BUILD: Manufactured to exceed ANSI and EU European Standards for abrasive products, these flap discs handle everything from aggressive stock removal to delicate surface blending, meeting the most demanding shop environments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MU0BBPF |
| Best Sellers Rank | #7,479 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Flap Discs |
| Brand | Benchmark Abrasives |
| Brand Name | Benchmark Abrasives |
| Compatible Devices | Angle Grinder |
| Compatible Disc Grinder Tool Models | DEWALT DWE4559CN |
| Compatible Material | Stainless Steel |
| Construction Type | Grinding |
| Customer Reviews | 4.6 out of 5 stars 252 Reviews |
| Grit Material | Aluminum Oxide, Zirconia, Zirconia Alumina |
| Grit Material Type | Aluminum Oxide, Zirconia, Zirconia Alumina |
| Grit Number | 40 |
| Grit Type | Zirconia |
| Industry Standard Identifier | Type 27 |
| Item Diameter | 4.5 inches |
| Item Dimensions | 4.5 x 4.5 x 0.04 inches |
| Item Dimensions L x W | 4.5"L x 4.5"W |
| Item Highlight | Jumbo High Density Sanding and Finishing Wheels for Angle Grinder, 10-Count |
| Item Thickness | 0.5 inches |
| Manufacturer | Benchmark Abrasives |
| Material Type | Zirconia Alumina |
| Model | BM-F4.5SZ40T27HD |
| Number of Items | 10 |
| Part Number | BM-F4.5SZ40T27HD |
| Product Dimensions | 4.5"L x 4.5"W |
| Recommended Uses For Product | Rust Removal |
| Set Name | 40 Grit | 10 Count |
| UPC | 653341412928 |
| Unit Count | 10 Count |

## Product Details

- **Brand:** Benchmark Abrasives
- **Compatible Devices:** Angle Grinder
- **Grit Material:** Aluminum Oxide, Zirconia, Zirconia Alumina
- **Grit Type:** Zirconia
- **Product Dimensions:** 4.5"L x 4.5"W

## Images

![Benchmark Abrasives 4.5" x 7/8" Zirconia Type 27 Flap Discs, 40 Grit - Image 1](https://m.media-amazon.com/images/I/71bvP7yXN2L.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the thickness of these discs?**
A: The thickness of the abrasive area depends on the grit:
- The 80 grit is .497" (12.6mm) thick in the area where the abrasive flaps are and that includes the black mounting wheel/disc
- The 120 grit is .315" (8.1mm) thick in the area where the abrasive flaps are and that includes the black mounting wheel/disc
The thickness of the black mounting wheel/disc is standard at a little less than 1/8"

**Q: which ones do you use for sharpening lawn mower blades?**
A: Type 27 is flat. Type 29 is bevelled. Either could be used to sharpen blades, depending on personal preference.36 or 40 grit is very aggressive for fast stock removal. No need to go any finer than that for mower blades.

**Q: Does this have the quick change nut on it?**
A: These fit any 4.5" angle grinders with the standard lock nut, but they DON NOT have the X-Lock type "teeth" to interface with an X-Lock/Quick Change type angle grinder

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!
*by W***Y on September 17, 2026*

Great product for the price!

### ⭐⭐⭐⭐⭐ Great product and value!
*by R***. on December 23, 2025*

Great value! Great product, lasting almost as long as, and almost as good as, the normal name brand we have normally used, but at a good, discounted price compared to name brand. We are a production commercial truck repair shop and will be using this product going forward.

### ⭐⭐⭐⭐⭐ Great discs and price
*by D***S on March 11, 2024*

I’ve been in fabrication for a long time and finding the best consumables for the cheapest price is a constant dance. These are great flap discs and they last a long time compared to others at this price point. I definitely recommend them

## Frequently Bought Together

- Benchmark Abrasives 4.5" x 7/8" Premium High Density Jumbo Zirconia Type 27 Flap Discs 4 1/2 for Angle Grinder, Sanding Discs, Finishing - Grinding Wheels 4 1/2 inch - (10 Pack) - 40 Grit
- 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
- 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

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**Shop now:** [https://www.desertcart.gr/products/96731870-benchmark-abrasives-4-5-x-7-8-zirconia-type-27](https://www.desertcart.gr/products/96731870-benchmark-abrasives-4-5-x-7-8-zirconia-type-27)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-10-14*