---
product_id: 136761639
title: "SHDIATOOL Diamond Grinding Cup Wheel 4-1/2 Inch for Granite Marble Iron Steel Masonry Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm"
brand: "shdiatool"
price: "C$3779"
currency: NIO
in_stock: false
reviews_count: 5
url: https://www.desertcart.ni/products/136761639-shdiatool-diamond-grinding-cup-wheel-4-1-2-inch-granite
store_origin: NI
region: Nicaragua
---

# 30/40 Coarse Diamond Grit Fits 7/8 inch arbor, 8063 RPM max speed Vacuum Brazed Tech for durability SHDIATOOL Diamond Grinding Cup Wheel 4-1/2 Inch for Granite Marble Iron Steel Masonry Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm

**Brand:** shdiatool
**Price:** C$3779
**Availability:** ❌ Out of Stock

## Summary

> 💥 Grind Like a Pro, Last Like a Legend!

## Quick Answers

- **What is this?** SHDIATOOL Diamond Grinding Cup Wheel 4-1/2 Inch for Granite Marble Iron Steel Masonry Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm by shdiatool
- **How much does it cost?** C$3779 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/136761639-shdiatool-diamond-grinding-cup-wheel-4-1-2-inch-granite)

## Best For

- shdiatool enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Material Mastery:** Seamlessly grind granite, marble, iron, steel, ceramic, and masonry—one wheel to rule them all.
- • **Wet or Dry Flexibility:** Optimized for both wet and dry applications, adapting to your job site needs with ease.
- • **Universal Compatibility:** Fits standard 7/8 inch arbor angle grinders, perfect for professional-grade tools.
- • **Vacuum Brazed Durability:** Advanced brazing technology ensures longer life and faster grinding speeds—work smarter, not harder.
- • **Aggressive Diamond Grit Power:** 30/40 coarse diamond grains deliver rapid, efficient grinding on toughest materials.

## Overview

The SHDIATOOL 4-1/2 inch Diamond Grinding Cup Wheel features a robust 30/40 coarse diamond grit and vacuum brazed technology for superior grinding speed and durability. Designed to fit 7/8 inch arbor angle grinders, it excels on granite, marble, iron, steel, and masonry surfaces with both wet and dry use. Engineered for professionals demanding aggressive performance and long-lasting reliability.

## Description

======================= DESCRIPTION ====================== ​PRODUCT NAME: High Quality Vacuum Brazed Diamond Grinding Disc QUANTITY: 1pc only SPECIFICATION: Diameter 115mm (4.5"), Bore 22.23mm (7/8"), ,Diamond grit #30/40 FEATURE: Dry or Wet working Multi-purpose for granite marble natural stone ceramic and even steel grinding #30/40 Coarse high quality Diamond grain ensure aggressive working performance Vacuum Brazed Technology provide faster grinding Speed and longer working life Easy to operate and safer for operater -------------------------------------------END---------------------------------------------

Review: Used this disk for roughly three months or so intentionally trying to kill it, its lost some effectiveness in areas where its been heavily used but still works very well with a bit of pressure and is basically new in areas of the disk that haven't seen as much use. I'm an Ironworker and it has been invaluable as a tool, it rips through galvanization on iron without putting pits in metal, can be used to make cuts if you're in a bind just have to go slow, and can reliable grind down welds flush with existing metal. It is kind of heavy and thick so the only worry long term is it damaging your grinder or wearing it out, but with that it dose not require hardly any pressure at all to do its job so your tool will never really be bogged down by it so im not sure on that yet, ill update this if I can in the future. Pretty solid would recommend for the job scope of Ironworking.
Review: Extraordinaire outil pour nettoyer ou rectifier le métal neuf ou soudé ou rouillé dans un temps record comparé à toute autre meule abrasive WOW ! Merci vous me faites gagner du temps à chaque usage !

## Features

- 1.Application: Dry or Wet working,Multi-purpose for iron steel granite marble natural stone ceramic and even steel grinding
- 2. Size: 1pc Diameter 115mm (4-1/2 inch), Bore 22.23mm (7/8 inch),Diamond grit 30/40
- 3. High Quality: 30/40 Coarse high quality Diamond grain ensure aggressive working performance
- 4. Durablity: Vacuum Brazed Technology provide faster grinding Speed and longer working life and safer operation
- 5. Machine: 7/8 inch arbor is suitable for angle grinder, the recommend speed is 8063 RPM

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078XS2LTM |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 132,440 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 59 in Cup Wheels |
| Colour | Silver |
| Customer Reviews | 4.6 4.6 out of 5 stars (137) |
| Cutting Diameter | 4.5 Inches |
| Date First Available | 10 Jan. 2018 |
| Grit Description | Coarse |
| Grit Number | 40 |
| Item Package Quantity | 1 |
| Item Weight | 290 g |
| Item diameter | 4.5 Inches |
| Item thickness | 0.04 Inches |
| Manufacturer | SHANGHAI DIATOOL CO., LTD. |
| Manufacturer reference | 43239-60088 |
| Material | Steel,Iron,Diamond |
| Number of Pieces | 1 |
| Part number | 43239-60088 |
| Power source type | Corded-electric |
| Size | 115mm(4-1/2 In.) |

## Product Details

- **Brand:** SHDIATOOL
- **Compatible devices:** Angle Grinder
- **Grit material:** Diamond
- **Grit type:** Coarse
- **Product dimensions:** 11.5L x 11.5W centimetres

## Images

![SHDIATOOL Diamond Grinding Cup Wheel 4-1/2 Inch for Granite Marble Iron Steel Masonry Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm - Image 1](https://m.media-amazon.com/images/I/810U1aZ1m6L.jpg)
![SHDIATOOL Diamond Grinding Cup Wheel 4-1/2 Inch for Granite Marble Iron Steel Masonry Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm - Image 2](https://m.media-amazon.com/images/I/61OBH9i-bbL.jpg)
![SHDIATOOL Diamond Grinding Cup Wheel 4-1/2 Inch for Granite Marble Iron Steel Masonry Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm - Image 3](https://m.media-amazon.com/images/I/61G4uZQWB0L.jpg)
![SHDIATOOL Diamond Grinding Cup Wheel 4-1/2 Inch for Granite Marble Iron Steel Masonry Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm - Image 4](https://m.media-amazon.com/images/I/71cqlzcRohL.jpg)
![SHDIATOOL Diamond Grinding Cup Wheel 4-1/2 Inch for Granite Marble Iron Steel Masonry Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm - Image 5](https://m.media-amazon.com/images/I/71l84KDNqAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***E on 2 February 2026*

Used this disk for roughly three months or so intentionally trying to kill it, its lost some effectiveness in areas where its been heavily used but still works very well with a bit of pressure and is basically new in areas of the disk that haven't seen as much use. I'm an Ironworker and it has been invaluable as a tool, it rips through galvanization on iron without putting pits in metal, can be used to make cuts if you're in a bind just have to go slow, and can reliable grind down welds flush with existing metal. It is kind of heavy and thick so the only worry long term is it damaging your grinder or wearing it out, but with that it dose not require hardly any pressure at all to do its job so your tool will never really be bogged down by it so im not sure on that yet, ill update this if I can in the future. Pretty solid would recommend for the job scope of Ironworking.

### ⭐⭐⭐⭐⭐ Review
*by R***N on 29 June 2025*

Extraordinaire outil pour nettoyer ou rectifier le métal neuf ou soudé ou rouillé dans un temps record comparé à toute autre meule abrasive WOW ! Merci vous me faites gagner du temps à chaque usage !

### ⭐⭐⭐⭐⭐ Review
*by S***E on 29 March 2025*

Oh, does that thing grind! Scary if put in the hands of someone you don't trust, but useful for quicly grinding off imperfections on mild steel (haven't tried other steels, yet). It grinds faster than regular grinding stones of the same size, given the grit, and the rounded shape lets you really gently grind off small details. Will you have to come back with another wheel for a smoother finich if aestyhetics are important? Yeah, but think of the time you'd waste compared to this if you only had a regular stone! No match!

## Frequently Bought Together

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-02*