Vacuum Brazed gold diamond core drill bit for Stone Drilling, Core Drill Bit for Granite Marble

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Quick Details
Place of Origin:
Henan, China (Mainland)
Brand Name:
Model Number:
vacuum brazed diamond core drill bit
Core Drill Bit
High Carbon Steel
Marble,granite drilling
Position drill:
Central position drills are available
working length:
35mm or 50mm
Outer Diameter:
6mm - 200mm
Welding Type:
Vacuum Brazed
Suggested R.P.M:
Drilling result:
Flat surface and even size
marble, sandstone, limestone, slate, etc.
stone, metal, concerte, wall.
Product name:
gold diamond core drill bit

Vacuum Brazed gold diamond core drill bit for Stone Drilling, Core Drill Bit for Granite Marble 

Product Description


Outer Diameter


Hole Diameter

 M14 ,M10

The range of Grit

Coarse 30#-40  Medium,100#   Fine 200#




5mm ,10mm,15mm



1) Competitive price and superior quality.

2) Long cutting life and stable performance 

3) segment is very sharpening.

4)High quality: It must pass our QC testing for 3times 

5)Efficiency and operator safety

Packaging & Shipping

Packing Details: 1 pcs for plastic Box, 10 Boxes for 1 Carton as required.


Delivery Details : 1000 pcs need 1-3 days

                            10000 pcs need 6 days

 Shipment: Express Air Cargo, Sea freight

Scope of Application

Granite / Marble /Ceramic / Porcelain tile drilling hole, etc  

The core drill bits can be used on cordless &corded angle grinder with M14 spindle. 

Company Information

We are research, development, production and sales in one of the modern enterprise. Our main products include diamond cutting disc, grinding wheel, saw blade, diamond core bits and so on.They can be further divided into sintered, electroplated, brazed series through craft .

Our products sales all over the world. Customized design is accepted. Your any requirements will receive our prompt and careful attentions.



Where is your factory located? How can I visit?

A.Our company located in Zhengzhou ,China .You can fly to zhengzhou Airport directly

Can we use our brand?

A: Yes, we provide OEM service, just send your packaging design and Logo to us.

What is the lead time?

Generally it takes 1-2 working days for sample shipping.

10-15 working days for mass order, depend on specific requirement or quantity.

Please feel free to contact us for further information.

How do you solve when quality problems occurred?

Our aim is to have long term cooperation with your esteem company ,we will work with you to solve both quality and technical problems .Please send us pictures or video .Our technician will analyze and offer solving scheme .New placements will be sented to you directly .


Packaging & Shipping

We specialized in construction and stone tools for over 15 years.

Measuring the difference, you will be surprised!


We care, design, supply customer’s need, always.

Welcome to contact us~