Global Leading Diamond Tool Manufacturer.

With over 20 years of experience in manufacturing diamond tools, we take great pride in introducing a range of high-quality diamond core bits. Our product lineup includes various types such as stone drill bits, concrete core drills, ceramic tile drill bits, glass drill bits, and diamond router bits, designed to meet the demands of a wide range of indoor renovation and concrete construction projects.


Our products are manufactured using a variety of advanced techniques, including laser welding, high-frequency welding, sintering, electroplating, and vacuum brazing, ensuring that each tool delivers outstanding performance and exceptional durability. Whether you're involved in tile, stone, glass, or concrete work, our diamond core bits are tailored to meet your requirements.


Our dedicated team of professionals is committed to providing high-quality diamond tools, and we consider your needs as our production standards. We welcome collaboration between sellers and buyers, working together to explore new markets and deliver high-performance tools, with the ultimate goal of achieving success. If you are interested in our products or need more information, please feel free to inquire. We are wholeheartedly committed to providing you with support and services.

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Custom Items

Special overall Length (normal length is 450mm, others like 300mm, 400mm, etc) and outer diameter of diamond core bits are available according to customer request.

Thread size: Shaft, 1/2”gas, M14, M16, UNC1-1/4”, etc. can be done as your request.

Special segment shapes are available according to customer demand.

Provide Laser mark, Screen Printing, Sticker to customize diamond core bits of your own brand. We have a professional design team that provides FREE services for you.

Better tell us the power of your drilling motor/handheld drilling machine/angle grinder and RPM request.

Minimum Order Quantity
MOQ for Sample order: 5pcs/size.
MOQ for Formal order: 50pcs/size.
Diamond Core Drill Bit Sizes
Laser Welded or High-frequency welding Diamond core drill bits for concrete, reinforcement concrete, brick, sizes from 12mm – 600mm, Normal Length: 450mm.
Diamond core drill adapter, especially can supply Hilti adapter
Dry diamond drill bits for German Market: 68mm, 72mm, 82mm.
Stone Drill bits, sizes from 6mm to 100mm
Electroplated drill bits for glass or tile drilling, size form 6-50mm.
Vacuum brazed diamond core bits for tile, ceramic, porcelain drilling, size 5mm to 180mm.
Diamond core drill segments for re-tipping from 12mm to 600mm
Re-tipping magnet
Silver brazed wire.
After-Sales Service: 
√ Quality Assurance: Ensure that the quality of the diamond core bits complies with CE, and GB standards. In case of quality issues, a return or exchange service is available.
Technical Support: Provide technical assistance on the proper usage, maintenance, and safe operation of diamond drill bits.
Regular Maintenance: Offer periodic maintenance recommendations to ensure optimal performance and longevity of diamond drill bits.
Training Services: Provide training for customers on the correct and safe use, as well as maintenance of the drill bits
Prompt Response: Provide channels for swift response to customer inquiries and complaints, ensuring timely issue resolution and satisfactory solutions.
Customization Services: Offer customized diamond core bits solutions according to specific customer requirements to meet the diverse needs of different projects.

If you have any questions about these products, our sales person and professional technical experts will be happy to help you. You can send a message or email to us; we will give you fast reply.
Produces and exports diamond tools for the stone processing and construction industries to countries around the world.
Contact Us
Telephone: +86-18936085316
QQ:  1017811927
Factory Address
Tuqiao Industrial Park, Jiangning District, Nanjing, Jiangsu, China
Sales dept. Address
No.11009, Building 8, K-Land Manhattan Square, No.5 Weihua Road, SIP, Suzhou, Jiangsu, China 21500 
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