---
product_id: 83145680
title: "Diamond Grinding Cup Wheel 4-1/2 Inch for Granite, Marble and Masonry Shaping, Grooving, Iron and Steel Grinding Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm"
brand: "shdiatool"
price: "S$57"
currency: SGD
in_stock: true
reviews_count: 13
category: "Shdiatool"
url: https://www.desertcart.sg/products/83145680-diamond-grinding-cup-wheel-4-1-2-inch-for-granite
store_origin: SG
region: Singapore
---

# 30/40 coarse diamond grit for aggressive grinding Fits 7/8 inch arbor, max 8063 RPM for angle grinders Vacuum brazed tech for faster speed & durability Diamond Grinding Cup Wheel 4-1/2 Inch for Granite, Marble and Masonry Shaping, Grooving, Iron and Steel Grinding Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm

**Brand:** shdiatool
**Price:** S$57
**Availability:** ✅ In Stock

## Summary

> 💎 Grind like a pro, last like a legend.

## Quick Answers

- **What is this?** Diamond Grinding Cup Wheel 4-1/2 Inch for Granite, Marble and Masonry Shaping, Grooving, Iron and Steel Grinding Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm by shdiatool
- **How much does it cost?** S$57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/83145680-diamond-grinding-cup-wheel-4-1-2-inch-for-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

- • **Built to Outlast:** Vacuum brazed technology ensures longer life and safer, faster grinding sessions.
- • **Effortless Precision:** Aggressive yet smooth grinding reduces pressure on your tool and boosts efficiency.
- • **Multi-Material Mastery:** Engineered for dry or wet use on iron, steel, natural stone, ceramic, and masonry.
- • **Versatile Compatibility:** Perfectly fits standard 7/8 inch arbor angle grinders for seamless tool integration.
- • **Unmatched Grinding Power:** Coarse 30/40 diamond grit rips through granite, marble, steel & more with ease.

## Overview

The SHDIATOOL Diamond Grinding Cup Wheel is a 4.5-inch, vacuum brazed grinding disc featuring high-quality 30/40 coarse diamond grit. Designed for multi-material use including granite, marble, iron, steel, and ceramic, it fits a 7/8 inch arbor angle grinder and operates safely up to 8063 RPM. Its durable construction delivers fast, aggressive grinding with extended lifespan, making it a top choice for professionals demanding precision and reliability.

## Description

Product description Stone Grinding Wheel Stone Polishing Pads Concrete Grinding Wheel PCD Grinding Wheel diamond chamfer bits stone grinding wheel Diamond milling bits Diamond Drill Bits Sets Drill Bits Set k5 Drill Bits Sets k7 Drill Bits Sets k6 Drill Bits Sets k4 Drill Bits Sets k3 Drill Bits Sets k2 Drill Bits Sets High Quality Diamond High Quality Diamond #30/40 Coarse high quality Diamond grain ensure aggressive working performance. Application Multi-purpose for granite marble natural stone ceramic and even steel grinding. Vacuum Brazed Tech. Vacuum Brazed Technology provide faster grinding Speed and longer working life. Good Performance Very high quality, grinding granite marble natural stone ceramic iron steel , grooves in stones with less spark, faster and safer.

Review: Consistent, sturdy, long lasting, effortless - 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: good - This worked better than anticipated. Ive only used it for one project, carving some limestone, but it ate it pretty fast and seemed to hold up well. I dont have anything else to compare it to in terms of carbide/stone carving, but it cut as good or better than a 36 grit flap disc cutting wood.

## 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 |
| Best Sellers Rank | #32,947 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #64 in Grinding Discs |
| Brand | SHDIATOOL |
| Brand Name | SHDIATOOL |
| Compatible Devices | Angle Grinder |
| Compatible Material | Alloy Steel, Ceramic, Iron, Marble |
| Construction Type | Grinding |
| Customer Reviews | 4.6 out of 5 stars 264 Reviews |
| Grit Material | Ceramic, Diamond |
| Grit Material Type | Ceramic, Diamond |
| Grit Number | 40 |
| Grit Type | Coarse |
| Industry Standard Identifier | 718760494778 |
| 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 Thickness | 0.04 Inches |
| Item Weight | 10.24 ounces |
| Manufacturer | SHANGHAI DIATOOL CO., LTD. |
| Material Type | Artificial diamond and Steel body |
| Maximum Rotational Speed | 8063 RPM |
| Number of Items | 1 |
| Part Number | 43239-60088 |
| Product Dimensions | 4.5"L x 4.5"W |
| Recommended Uses For Product | Grinding |
| UPC | 718760494778 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SHDIATOOL
- **Compatible Devices:** Angle Grinder
- **Grit Material:** Ceramic, Diamond
- **Grit Type:** Coarse
- **Product Dimensions:** 4.5"L x 4.5"W

## Images

![Diamond Grinding Cup Wheel 4-1/2 Inch for Granite, Marble and Masonry Shaping, Grooving, Iron and Steel Grinding Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm - Image 1](https://m.media-amazon.com/images/I/810U1aZ1m6L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Consistent, sturdy, long lasting, effortless
*by C***E on February 2, 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.

### ⭐⭐⭐⭐⭐ good
*by E***N on January 6, 2026*

This worked better than anticipated. Ive only used it for one project, carving some limestone, but it ate it pretty fast and seemed to hold up well. I dont have anything else to compare it to in terms of carbide/stone carving, but it cut as good or better than a 36 grit flap disc cutting wood.

### ⭐⭐⭐⭐⭐ Works great
*by C***W on March 12, 2026*

Shreds stone and minerals like paper

## 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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- SHDIATOOL 3 Inch Profile Hand Diamond Wheel Height 15mm Convex Curve Edge Grinding for Stone Marble Granite Rock

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-07-09*