---
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: "₨23727"
currency: LKR
in_stock: true
category: "Shdiatool"
url: https://www.desertcart.lk/products/83145680-diamond-grinding-cup-wheel-4-1-2-inch-for-granite
store_origin: LK
region: Sri Lanka
---

# 30/40 coarse diamond grit for aggressive grinding Fits 7/8 inch arbor, max 8063 RPM for precision Vacuum brazed tech for faster speed & longer life 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:** ₨23727
**Availability:** ✅ In Stock

## Summary

> 💎 Grind like a pro, finish like a boss!

## 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?** ₨23727 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/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

- • **Durability Meets Safety:** Vacuum brazed construction ensures longer life and safer operation
- • **Versatile Wet or Dry Use:** Adaptable for both wet and dry grinding tasks, maximizing job site flexibility
- • **Precision Fit for Pro Tools:** Seamlessly fits standard 7/8 inch arbor angle grinders
- • **Turbocharged Grinding Power:** 30/40 coarse diamond grit delivers rapid material removal
- • **Unmatched Multi-Material Mastery:** Grind granite, marble, steel & more with one wheel

## Overview

The SHDIATOOL Diamond Grinding Cup Wheel is a 4-1/2 inch, vacuum brazed grinding disc designed for high-performance shaping and grinding of granite, marble, masonry, iron, and steel. Featuring a coarse 30/40 diamond grit and compatible with 7/8 inch arbor angle grinders running up to 8063 RPM, it offers aggressive material removal, durability, and versatility for both wet and dry applications.

## Description

Buy SHDIATOOL 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: Surface Grinding Wheels - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## 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 | #38,085 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #68 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 267 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.

## Questions & Answers

**Q: Can this convex grinding wheel be used to remove thick rust on iron or flatten steel weld seams?**
A: Yes. While it excels at granite shaping, the vacuum brazed tech and #30/40 grains allow this convex disc to effortlessly grind heavy rust, zinc coatings, and tough steel welds without clogging. Perfect for mixed-material jobsites.

**Q: What size arbor hole does it have? Will it fit my angle grinder?**
A: It features a universal 7/8"(22.23mm) arbor to fit standard grinders. Note: The 4" disc includes an extra washer to fit 5/8" spindles too. Please select your matching disc diameter (4", 4.5", or 5") based on your grinder guard size.

**Q: Is this grinding wheel flat or convex?**
A: It has a unique convex (curved "flying saucer") profile. Unlike flat wheels, this convex shape gives you maximum control for stone grooving, curved contouring, artistic carving, and smoothly shaving down uneven surfaces.

**Q: Does it emit strong odors or a storm of sparks?**
A: No. Compared to ordinary resin wheels, our vacuum brazed diamond technology drastically reduces friction. This results in significantly fewer sparks, cooler grinding, and absolutely no harsh odors—making your workspace safer.

## 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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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-08-20*