---
product_id: 119990014
title: "SHDIATOOL Diamond Core Drill Bits 3 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 75mm"
brand: "shdiatool"
price: "4496654₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Shdiatool"
url: https://www.desertcart.vn/products/119990014-shdiatool-diamond-core-drill-bits-3-inch-for-hard-stone
store_origin: VN
region: Vietnam
---

# Laser welded diamond edge Dry & wet drilling versatile 75mm precision diameter SHDIATOOL Diamond Core Drill Bits 3 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 75mm

**Brand:** shdiatool
**Price:** 4496654₫
**Availability:** ✅ In Stock

## Summary

> 💎 Drill Like a Boss: Precision Meets Power in Every Cut

## Quick Answers

- **What is this?** SHDIATOOL Diamond Core Drill Bits 3 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 75mm by shdiatool
- **How much does it cost?** 4496654₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/119990014-shdiatool-diamond-core-drill-bits-3-inch-for-hard-stone)

## 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 Perfect:** 75mm (3 inch) diameter with a 5/8 inch-11 threaded shank for seamless compatibility and clean, accurate holes every time.
- • **Effortless Operation:** Designed for angle grinders and adaptable to SDS, hex, and round shanks with the right adapter—drill like a pro with minimal setup.
- • **Unmatched Durability:** Laser welded diamond segments ensure long-lasting sharpness and prevent segment loss during intense drilling.
- • **Versatile Wet & Dry Use:** Optimized for both dry and wet drilling, extending bit life and maintaining peak performance on granite, marble, concrete, and brick.
- • **Engineered for Efficiency:** Vacuum brazing protective layer offers clean cuts and steel core protection, boosting your workflow and reducing downtime.

## Overview

The SHDIATOOL 3-inch (75mm) Diamond Core Drill Bit features laser welded diamond segments on a robust steel body, engineered for high-efficiency drilling through hard materials like granite, marble, concrete, and brick. Its versatile design supports both dry and wet drilling, significantly extending tool life. Compatible with angle grinders and various shank types via adapters, it delivers clean, precise holes with minimal wear, making it the go-to choice for professionals demanding durability and performance.

## Description

SHDIATOOL Diamond Core Drill Bits 3 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 75mm - desertcart.com

Review: Excellent core bit - I used this to core drill 6 holes on my granite tread steps, it works great with the corded hand grinder! I use the garden hose to spray water as I’m drilling. The core bit still looking great with no signs of damage! It exceeded my expectations! Excellent product!
Review: surprisingly good value for an imported tool - Wasn't sure how well this was going to work but was pleasantly surprised with results. I bought two of these SHDiamtool core drills, a 50mm and a 32mm for custom work on sandstone blocks 2 to 2-1/4" thick. I had 12 blocks that needed one 2" hole drilled completely thru and four 1-1/4" holes drilled an inch deep, not all the way thru. These drills do not come with a pilot drill, so I made a template out of plywood and 2x4s with the same hole sizes and layout as I needed for the blocks. That made it easy to be sure the drill didn't skip or wander when making initial contact with surface of stone. I used a drill press with water coolant and checked a core drill speed chart to make sure I was in the ball park for spindle speed - used 1080 rpm for both sizes - and these things cut thru sandstone really well and quite quickly using only moderate downfeed pressure. This pair of core drills performed well and did exactly what I needed - I would buy them again, but they hardly show any wear on them after 12 holes with the 50mm and 48 half depth holes on the 32mm. Make sure you have or buy the correct arbor for them and you should have no problems if you keep them cool with water, use the correct spindle speed and don't use too much down force.

## Features

- Laser Welded Diamond Dry Drilling Core Bits is Designed for drilling hard granite, marble, engineering stone, concrete, brick. Ideal for drilling the faucet mounting holes in stone countertops, plumbing lines in showers and vanities
- 1pc, Diameter: 75mm(3 inch), Total length: 100MM, Thread: 5/8 inch-11. Dry or Wet Drilling - use wet will greatly prolong the segment life
- High-Quality Diamond and Stong Steel Body extend drilling life and improve the working efficiency
- Laser welded technology improve the performance of segments,avoid segments off during drilling process.The vacuum brazing protective layer on the surface of the core steel offers clean cut & steel core protection
- Easily operate on Angle Grinder; Need an adapter for drill or other machine, such as SDS,hex,Round plus shank

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07K2XLLSR |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #23,663 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #8 in Core Drill Bits |
| Brand | SHDIATOOL |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,318) |
| Cutting Angle String | 30 Degrees |
| Cutting Diameter | 75 Millimeters |
| Date First Available | November 1, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item dimensions L x W x H | 2.95 x 2.95 x 3.94 inches |
| Item model number | A6880475 |
| Manufacturer | SHANGHAI DIATOOL CO., LTD. |
| Material | Artificial diamond and Steel body |
| Number of Flutes | 2 |
| Number of Pieces | 1 |
| Part Number | A6880475 |
| Point Style | Diamond Point |
| Product Dimensions | 2.95 x 2.95 x 3.94 inches |
| Set Name | Single Item |
| Shank Type | Threaded |
| Size | 75mm (3 In.) |
| Surface Recommendation | Stone |
| Tool Flute Type | Straight |
| UPC | 734602266969 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SHDIATOOL
- **Cutting Angle String:** 30 Degrees
- **Cutting Diameter:** 75 Millimeters
- **Material:** Artificial diamond and Steel body
- **Shank Type:** Threaded

## Images

![SHDIATOOL Diamond Core Drill Bits 3 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 75mm - Image 1](https://m.media-amazon.com/images/I/61F7MXczAyL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent core bit
*by M***D on November 4, 2025*

I used this to core drill 6 holes on my granite tread steps, it works great with the corded hand grinder! I use the garden hose to spray water as I’m drilling. The core bit still looking great with no signs of damage! It exceeded my expectations! Excellent product!

### ⭐⭐⭐⭐⭐ surprisingly good value for an imported tool
*by A***R on May 19, 2020*

Wasn't sure how well this was going to work but was pleasantly surprised with results. I bought two of these SHDiamtool core drills, a 50mm and a 32mm for custom work on sandstone blocks 2 to 2-1/4" thick. I had 12 blocks that needed one 2" hole drilled completely thru and four 1-1/4" holes drilled an inch deep, not all the way thru. These drills do not come with a pilot drill, so I made a template out of plywood and 2x4s with the same hole sizes and layout as I needed for the blocks. That made it easy to be sure the drill didn't skip or wander when making initial contact with surface of stone. I used a drill press with water coolant and checked a core drill speed chart to make sure I was in the ball park for spindle speed - used 1080 rpm for both sizes - and these things cut thru sandstone really well and quite quickly using only moderate downfeed pressure. This pair of core drills performed well and did exactly what I needed - I would buy them again, but they hardly show any wear on them after 12 holes with the 50mm and 48 half depth holes on the 32mm. Make sure you have or buy the correct arbor for them and you should have no problems if you keep them cool with water, use the correct spindle speed and don't use too much down force.

### ⭐⭐⭐⭐⭐ Perfect for my needs
*by M***Y on August 19, 2025*

I purchased an 1.25" and a 1.375" one. also adapters for my cordless. They cut great and fairly easy to control that way rather than full on or full off like peanut grinders do. Variable speed is wonderful (says the guy who only does 4-5 holes a year).

## Frequently Bought Together

- SHDIATOOL Diamond Core Drill Bits 3 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 75mm
- SHDIATOOL Core Drill Bit Adapter 5/8 inch-11 Thread Male to SDS Plus Shank for SDS Plus Drills
- SHDIATOOL Adapter for Core Bits 5/8-Inch-11 to M14 Thread

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-17*