---
product_id: 90070614
title: "11257A High Density Jumbo Premium Zirconia Flap Disc | 4.5\" x 7/8-Inch, 40 Grit, Bevel Type #29-10 Pack"
brand: "neiko"
price: "$67.52"
currency: USD
in_stock: true
reviews_count: 13
category: "Neiko"
url: https://www.desertcart.us/products/90070614-11257a-high-density-jumbo-premium-zirconia-flap-disc-4-5
store_origin: US
region: United States of America
---

# Premium blue zirconia grit 13300 RPM max speed Fiberglass backing for vibration absorption 11257A High Density Jumbo Premium Zirconia Flap Disc | 4.5" x 7/8-Inch, 40 Grit, Bevel Type #29-10 Pack

**Brand:** neiko
**Price:** $67.52
**Availability:** ✅ In Stock

## Summary

> ⚡ Grind smarter, not harder — unleash pro-level precision every time!

## Quick Answers

- **What is this?** 11257A High Density Jumbo Premium Zirconia Flap Disc | 4.5" x 7/8-Inch, 40 Grit, Bevel Type #29-10 Pack by neiko
- **How much does it cost?** $67.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/90070614-11257a-high-density-jumbo-premium-zirconia-flap-disc-4-5)

## Best For

- neiko enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Value Pack:** 10-pack set keeps your workflow uninterrupted with consistent high performance
- • **Industrial-Grade Power:** Max 13,300 RPM for rapid, efficient metal grinding
- • **Versatile Bevel Design:** Type 29 angled discs perfect for contour grinding, blending, and finishing
- • **Durability Meets Precision:** Premium blue zirconia grit ensures long-lasting, aggressive material removal
- • **Vibration-Free Performance:** Fiberglass backing absorbs shocks, reducing smear and enhancing control

## Overview

The NEIKO 11257A High Density Jumbo Premium Zirconia Flap Disc is a 4.5-inch, 40-grit abrasive wheel designed for heavy-duty metal grinding and finishing. Featuring industrial-grade blue zirconia grit and a fiberglass backing, it delivers high durability, vibration absorption, and smooth, efficient stock removal. Its Type 29 bevel design excels at contour and edge work, making it ideal for metal fabrication, welding, and industrial maintenance. This 10-pack offers exceptional value for professionals demanding consistent, high-performance grinding discs.

## Description

The Neiko 11257A High Density Premium Zirconia Flap Disc can operate with a maximum speed of 13300 RPM. Each 40-grit flap disc in the 10-piece set is outfitted with an arbor size of 7/8-inch.

Review: Solid Pad - I recently purchased the NEIKO 11142A Zirconia Flap Discs, and I have to say, they exceeded my expectations. The quality of these discs is impressive—they're durable and hold up well under high pressure and heat. I used them for grinding and sanding metal, and they performed flawlessly, removing material quickly and leaving a smooth finish. The angled Type 29 design is particularly useful for shaping edges and grinding contours. It feels like the discs were designed with precision in mind. The fiberglass backing plate is another great feature—it absorbs vibrations and prevents smearing, which makes the whole process smoother and more efficient. Overall, these flap discs are a fantastic value for the price. If you're looking for reliable and high-performing discs for your angle grinder, I highly recommend giving these a try.
Review: Flap disc - These flap discs are excellent quality. They cut smoothly, last longer than the cheaper discs I’ve used, and don’t wear down quickly even on tougher metals. Great value for the price, and they fit my grinder perfectly. Highly recommend for anyone doing metal fabrication or welding work.

## Features

- DURABLE: Our 10 pack 40 grit flap disc 4-1 2 inch abrasive wheels are constructed of industrial grade premium blue zirconia for strength, durability, and extended disc life.
- HIGH DENSITY: Our industrial grade zirconia flap sanding discs are made with a fiberglass backing that effectively absorbs vibrations without smearing during usage, bringing a more stable and efficient grinding.
- HEAVY DUTY SANDING DISCS: This 40-grit bevel angle grinder sanding disc is built for grinding, blending, and finishing on a wide range of metal for grinding, blending, and finishing on a wide range of metal
- APPLICATION: Bevel Type 27-disc build is effective for blending, smoothing, finishing flat surfaces, deburring, and grinding contours. Perfect for radius grinding on steel, sheet metal, welding, machining, heavy duty equipment and industrial maintenance.
- QUALITY: These 4 1/2 grinding wheels are constructed with a fiberglass backing plate to help absorb vibrations and reduce smear during use. Our flap disc set makes it ideal for high performance blending and stock removal on metals and other uneven surfaces.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FT47NWN |
| Best Sellers Rank | #1,777 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Flap Discs |
| Brand | NEIKO |
| Compatible Devices | Angle Grinder |
| Compatible Disc Grinder Tool Models | NEIKO 11258A |
| Construction Type | Bonded |
| Date First Available | July 23, 2018 |
| Global Trade Identification Number | 00816914022393 |
| Grit Material | Zirconia Alumina |
| Grit Number | 40 |
| Grit Type | Coarse |
| Item Diameter | 4.5 Inches |
| Item Weight | 2.38 pounds |
| Item model number | 11257A |
| Manufacturer | Neiko |
| Maximum Rotational Speed | 13300 RPM |
| Product Dimensions | 4.5"L x 4.5"W |
| Recommended Uses For Product | Grinding |
| UPC | 816914022393 |

## Product Details

- **Brand:** NEIKO
- **Compatible Devices:** Angle Grinder
- **Grit Material:** Zirconia Alumina
- **Grit Type:** Coarse
- **Product Dimensions:** 4.5"L x 4.5"W

## Images

![11257A High Density Jumbo Premium Zirconia Flap Disc | 4.5" x 7/8-Inch, 40 Grit, Bevel Type #29-10 Pack - Image 1](https://m.media-amazon.com/images/I/81PuLfcB3DL.jpg)

## Questions & Answers

**Q: will these disks work to sand wood?**
A: i have been using the 80 grit disc on wood for three years , i use them to sculpt live edge lumber for furniture. they work great just dont over use them when they are worn out change them or they will burn the wood. they are not ment to finish sand and will gouge the wood if you are not careful.

**Q: Will these flap disk grinders fit black and decker angle grinders?**
A: Hi Steve.  These are generic and should fit any 4 1/2" angle grinders.  They work very well at removing paint and rust without removing a lot of metal

**Q: The chrome on my runner boards is bubbling and chipping. Will this work to sand the remaining chrome off and prep for Spray on bed liner on them?**
A: yes, these will sand anything, ive used them on wood,metal, paint and varnish so far, the paint and varnish clog them up pretty fast tho

**Q: Where are they made?**
A: China

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid Pad
*by P***L on April 28, 2025*

I recently purchased the NEIKO 11142A Zirconia Flap Discs, and I have to say, they exceeded my expectations. The quality of these discs is impressive—they're durable and hold up well under high pressure and heat. I used them for grinding and sanding metal, and they performed flawlessly, removing material quickly and leaving a smooth finish. The angled Type 29 design is particularly useful for shaping edges and grinding contours. It feels like the discs were designed with precision in mind. The fiberglass backing plate is another great feature—it absorbs vibrations and prevents smearing, which makes the whole process smoother and more efficient. Overall, these flap discs are a fantastic value for the price. If you're looking for reliable and high-performing discs for your angle grinder, I highly recommend giving these a try.

### ⭐⭐⭐⭐⭐ Flap disc
*by J***E on September 7, 2025*

These flap discs are excellent quality. They cut smoothly, last longer than the cheaper discs I’ve used, and don’t wear down quickly even on tougher metals. Great value for the price, and they fit my grinder perfectly. Highly recommend for anyone doing metal fabrication or welding work.

### ⭐⭐⭐⭐⭐ Long lasting
*by D***M on December 31, 2025*

Works well with my grinder. Holds up well.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-25*