---
product_id: 75472856
title: "SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 35mm"
brand: "shdiatool"
price: "393 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Shdiatool"
url: https://www.desertcart.ro/products/75472856-shdiatool-diamond-core-drill-bits-1-3-8-inch-hard
store_origin: RO
region: Romania
---

# Laser welded diamond edge for ultimate durability Dry or wet drilling extends bit lifespan 5/8 inch-11 threaded shank fits most angle grinders SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 35mm

**Brand:** shdiatool
**Price:** 393 Lei
**Availability:** ✅ In Stock

## Summary

> 💎 Drill like a pro, cut like a boss — never settle for less!

## Quick Answers

- **What is this?** SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 35mm by shdiatool
- **How much does it cost?** 393 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/75472856-shdiatool-diamond-core-drill-bits-1-3-8-inch-hard)

## 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

- • **Versatile Dry & Wet Use:** Optimize performance and longevity by switching between dry and wet drilling
- • **Compact 35mm Diameter, 100mm Length:** Perfectly sized for professional-grade hole saw applications
- • **Precision Laser Welded Diamond Core:** Engineered for flawless cuts through granite, marble, and concrete
- • **Universal 5/8"-11 Thread Compatibility:** Seamlessly attaches to your angle grinder or drill with adapters
- • **Rugged Steel & Artificial Diamond Build:** Built to withstand heavy-duty use without compromising speed or accuracy

## Overview

The SHDIATOOL 35mm Diamond Core Drill Bit features laser welded artificial diamond edges and a durable steel body, designed for precision drilling in hard materials like granite, marble, concrete, and brick. Compatible with 5/8"-11 threaded angle grinders and adaptable to other machines, it supports both dry and wet drilling to maximize bit life. Compact yet robust, this core bit delivers professional-grade performance for demanding construction and renovation projects.

## Description

SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 35mm - 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

- 1-3/8 inch(35mm) Laser Welded Diamond Dry Drilling Core Bits
- Diameter:35mm(1-3/8 inch), Total length: 100mm, Thread: 5/8 inch-11
- Dry or Wet Drilling - use wet will greatly prolong the segment life
- Designed for drilling hard granite, marble, engineering stone, concrete, brick
- Easily operate on 5/8 inch-11 Angle Grinder; Need an adapter for drill or other machine, such as SDS,hex,Round plus shank

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B076LCFN4Y |
| Accessory Connection Type | 5/8"-11 Threaded |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #25,656 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Core Drill Bits |
| Brand | SHDIATOOL |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,317) |
| Cutting Angle String | 30 Degrees |
| Cutting Diameter | 35 Millimeters |
| Date First Available | October 19, 2017 |
| Finish | Steel |
| Finish Type | Steel |
| Handle Material | Hard Granite Marble Concrete |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 7 ounces |
| Manufacturer | SHANGHAI DIATOOL CO., LTD. |
| Material | Artificial diamond and Steel body |
| Number of Flutes | 2 |
| Number of Pieces | 1 |
| Package Dimensions | 4.25 x 1.54 x 1.54 inches |
| Part Number | A6880435.AUS |
| Power Source | Corded-electric |
| Shank Type | Threaded |
| Size | 35mm (1-3/8 In.) |
| Style | Compact |
| Surface Recommendation | Stone |
| Tool Flute Type | Straight |
| UPC | 718760495270 |
| Unit Count | 1.0 Count |

## Product Details

- **Cutting Angle String:** 30 Degrees
- **Cutting Diameter:** 35 Millimeters
- **Finish Type:** Steel
- **Material:** Artificial diamond and Steel body
- **Shank Type:** Threaded

## Images

![SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 35mm - Image 1](https://m.media-amazon.com/images/I/61Et7MMnkUL.jpg)

## 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 1-3/8 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 35mm
- SHDIATOOL Adapter for Core Bits 5/8-Inch-11 to M14 Thread

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---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-28*