---
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: "¥8839"
currency: JPY
in_stock: false
reviews_count: 5
url: https://www.desertcart.jp/products/136761639-shdiatool-diamond-grinding-cup-wheel-4-1-2-inch-granite
store_origin: JP
region: Japan
---

# 30/40 coarse diamond grit for aggressive grinding Fits 7/8 inch arbor, ideal for angle grinders Vacuum brazed tech for faster speed & longer life 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:** ¥8839
**Availability:** ❌ Out of Stock

## Summary

> 💎 Cut through the competition with diamond precision!

## 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?** ¥8839 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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

- • **Precision & Power:** Coarse diamond grit delivers rapid material removal
- • **Wet or Dry Mastery:** Optimized for both wet and dry applications, maximizing your workflow
- • **Unmatched Versatility:** Grind granite, marble, steel & ceramics with one tool
- • **Durability Meets Speed:** Vacuum brazed design ensures longer life and faster grinding
- • **Seamless Compatibility:** Perfectly fits standard 7/8 inch arbor angle grinders

## Overview

The SHDIATOOL 4-1/2 inch diamond grinding cup wheel features a robust 30/40 coarse diamond grit and vacuum brazed technology for aggressive, fast grinding on granite, marble, steel, and more. Designed for 7/8 inch arbor angle grinders, it supports both wet and dry use, delivering durability and precision for professional-grade stone and metalwork.

## 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: Hollowed out stones for pots and a large boulder for a birdbath. Chews through hard sandstone and even worked well on rhyolite (harder than granite.) Method involved parallel cutting with diamond wheel, knocking out remaining stone fins, and then finishing by shaping and smoothing with this disc. You can actually carve stone with this "flying saucer" profile. Highly recommended.
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 | 95,641 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 44 in Cup Wheels |
| Colour | Silver |
| Customer Reviews | 4.7 4.7 out of 5 stars (136) |
| 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/517hK98zCvL.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/51i2JHh1f4L.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/51wj4wGaSeL.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/51y7mwzPSYL.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/51yQoxG5KCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***N on 8 April 2025*

Hollowed out stones for pots and a large boulder for a birdbath. Chews through hard sandstone and even worked well on rhyolite (harder than granite.) Method involved parallel cutting with diamond wheel, knocking out remaining stone fins, and then finishing by shaping and smoothing with this disc. You can actually carve stone with this "flying saucer" profile. Highly recommended.

### ⭐⭐⭐⭐⭐ 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 R***W on 26 April 2025*

Was hesitant for price but works great. Use this on carbide teeth for a forestry mulcher cutter head on my excavator. Regular grinding disc's wouldn't touch them. This takes mere seconds on each one. After a few uses its still holding up well. Highly recommended.

## Frequently Bought Together

- 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
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**Shop now:** [https://www.desertcart.jp/products/136761639-shdiatool-diamond-grinding-cup-wheel-4-1-2-inch-granite](https://www.desertcart.jp/products/136761639-shdiatool-diamond-grinding-cup-wheel-4-1-2-inch-granite)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-28*