---
product_id: 406871314
title: "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"
brand: "shdiatool"
price: "FREE"
currency: EUR
in_stock: false
category: "Shdiatool"
url: https://www.desertcart.pt/products/406871314-shdiatool-diamond-grinding-cup-wheel-4-1-2-inch-granite
store_origin: PT
region: Portugal
---

# Vacuum brazed diamond grit #30/40 Max speed 8063 RPM for aggressive grinding 4.5 inch (115mm) diameter fits 7/8 inch arbor 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

**Brand:** shdiatool
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** 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 by shdiatool
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/406871314-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

- • **Built to Outlast:** Robust steel body and diamond coating resist wear, making it your go-to tool for heavy-duty ironwork and stone shaping.
- • **Speed Meets Safety:** High max RPM of 8063 combined with vacuum brazed tech means faster grinding with less heat and safer operation.
- • **Wet or Dry Mastery:** Engineered for both wet and dry use, ensuring peak performance and longer disc life in any environment.
- • **Diamond Precision Power:** Vacuum brazed #30/40 diamond grit delivers ultra-aggressive grinding on granite, marble, steel & more.
- • **Universal Fit & Versatility:** 4.5-inch diameter with 7/8-inch arbor fits most angle grinders for multi-material shaping and grooving.

## Overview

The SHDIATOOL 4.5-inch vacuum brazed diamond grinding cup wheel features coarse #30/40 diamond grit for aggressive grinding on granite, marble, steel, and masonry. Designed for both wet and dry applications, it fits standard 7/8-inch arbors and operates safely at speeds up to 8063 RPM. Its durable steel body and advanced brazing technology ensure long life and consistent performance, making it ideal for professional ironworkers and stone fabricators seeking efficiency and precision.

## 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---------------------------------------------

## Features

- 1 pc 4-1/2 inch High Quality Vacuum Brazed Diamond Grinding Disc
- Diameter 115mm (4.5"), Bore 22.23mm (7/8"),Diamond grit #30/40
- Dry or Wet working,Multi-purpose for iron steel 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 and safer operation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078XS2LTM |
| Best Sellers Rank | #231,258 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #182 in Grinding Discs |
| Brand Name | SHDIATOOL |
| Compatible Devices | Angle Grinder |
| Compatible Material | Ceramic |
| Construction Type | Coated |
| Country Of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (152) |
| Grit Material Type | Ceramic |
| Grit Number | 40 |
| Grit Type | Coarse |
| Industry Standard Identifier | 718760494778 |
| Item Diameter | 4.5 Inches |
| Item Dimensions | 11.4 x 11.4 x 0.1 centimeters |
| Item Dimensions L x W | 11.4L x 11.4W centimeters |
| Item Thickness | 0.04 Inches |
| Item Weight | 290 g |
| Manufacturer | SHANGHAI DIATOOL CO., LTD. |
| Material Type | Artificial diamond and Steel body |
| Maximum Rotational Speed | 8063 RPM |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 43239-60088 |
| Recommended Uses For Product | Grinding |
| UPC | 718760494778 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SHDIATOOL
- **Compatible devices:** Angle Grinder
- **Grit material:** Ceramic
- **Grit type:** Coarse
- **Product dimensions:** 11.4L x 11.4W centimeters

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/517hK98zCvL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/51Kk0YPfBTL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/810U1aZ1m6L.jpg)

## 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
- SHDIATOOL 4-1/2 Inch Diamond Cutting Grinding Disc Fits 5/8-11 Arbor for Marble Ceramic Double Sided Vacuum Brazed Fast Cutting Shaping Grinding Wheel
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**Shop now:** [https://www.desertcart.pt/products/406871314-shdiatool-diamond-grinding-cup-wheel-4-1-2-inch-granite](https://www.desertcart.pt/products/406871314-shdiatool-diamond-grinding-cup-wheel-4-1-2-inch-granite)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-18*