Your Professional Stone Core Drill Supplier
We are a leading manufacturer and supplier of high-quality diamond tools for cutting, grinding, drilling, and polishing. We have been serving the construction, stone, and tile industries for several years with our innovative and durable products. Our products enjoy a strong reputation in the high-end market of the USA.
Production Advantage
With high-quality raw materials, advanced production equipment, and skilled operators, we provide our customers with the best diamond tools, fast delivery times, and guaranteed quality assurance.
Professional Team
We have an R&D team to support new product development, a C&S team to offer the best pre-sales, in-sales, and after-sales service, and a QC team to inspect and ensure the quality of every shipment.
Quick Response
We provide an 8-hour quick response on working days and a 24-hour quick response during holidays.You can connect with us at any time via Email, WhatsApp, or Facebook!
Granite Core Drill Bits
| Diameter: | 3/4"(20mm)-4"(100mm) |
|
Working Length: |
60mm |
|
Adaptor Type: |
M14, 5/8"-11,1/2"Gas |
Here are some parameters of the core drill bits
|
General size(Inch/mm) |
Working length(mm) |
Adaptor Type |
|
3/4"/20 |
60 |
M14, 5/8"-11,1/2"Gas |
|
1"/25 |
||
|
1-1/4"/32 |
||
|
1-3/8"/35 |
||
|
1-1/2"/38 |
||
|
1-3/4"/45 |
||
|
2"/51 |
||
|
2-1/4"/57 |
||
|
2-1/2"/63 |
||
|
2-3/4"/70 |
||
|
3"/75 |
||
|
3-1/2"/90 |
||
|
4"/100 |
Key Features
Hollow Core Design
Extracts a clean cylinder of material to reduce cutting resistance and improve efficiency.
Diamond Cutting Edge
Synthetic diamonds are bonded to the tip for maximum abrasion and cutting power.
Wet or Dry Use
Some bits are designed for water-cooled applications, while others handle dry drilling environments.
Size Versatility
Available in multiple diameters and lengths to match your project needs.

Choosing the Right Core Bit
Material Hardness
Match the bit’s bond type to the stone. Harder materials require softer bonds and vice versa.
Cutting Method
Wet drilling is better for cooling and dust control; dry drilling offers convenience on quick jobs.
Hole Size and Depth
Choose the correct diameter and length to match your application and slab thickness.
Machine Compatibility
Ensure your bit’s shank and connection match your drilling equipment.

OEM,ODM are accecpted and supported
We can support your demands about the product of specification and performance
We have rich experience on Diamond tools field
Our customers come from all over the world,we know the market situation and can share you same experience if you need
Packing & Delivery
Delivery time
For samples, shipped within 3 days after receiving the deposit,
For regular order, around 3-7 days, depends on the quantity of your order.
Packaging
The inner packaging is carton box .The outer packaging is carton box Or woodencase.(If by air ,carton box will reduce the weight, if by sea, we suggest woodenbox for waterproof.

FAQ
We're professional stone core drill manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale stone core drill made in China here from our factory.
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