3-Part Wet Diamond Core Drill Bit
The modular diamond core drill bit is designed with a three-section threaded structure, offering maximum flexibility, efficiency, and cost-effectiveness for professional drilling applications. The tool is ideal for core drilling through concrete, masonry, stone, granite, and other hard materials.
3-Part Wet Diamond Core Drill Bit
Product Overview
The 3-Part Wet Diamond Core Drill Bit is a modular, professional-grade tool designed for wet drilling in concrete, brick, granite, and other hard construction materials. Built for demanding job site conditions, this bit features a screw-type threaded assembly that allows quick connection between the top shank, extension barrel, and cutting head. It is ideal for use with hand-held or rig-mounted coring machines in structural, electrical, or plumbing applications.
Note: This bit is not intended for cutting through reinforced steel bars (rebar).
Key Features
• Modular 3-Part Design
The drill bit consists of three detachable sections—head piece, extension tube, and drill bit. This structure allows for easy replacement of worn parts, reducing maintenance time and cost.

• Wet Drilling Optimized
Designed for use with water-cooled drilling systems, improving efficiency and extending the life of the diamond segment during continuous use.
• High-Performance Diamond Cutting Edge
Delivers clean, fast cuts in concrete, masonry, and stone. Suitable for professional core drilling where accuracy and durability matter.
• Standard Thread Compatibility
Available in M22 and 1-1/4” UNC thread types, ensuring a secure fit with most standard core drilling machines on the market.
• Custom Sizes and Finishes
Diameter range from 18mm to 400mm, lengths of 370mm and 450mm. Durable spray-painted finish in black, red, blue, or gold—custom colors available upon request.
Product Specifications
Typical Applications
• Concrete wall and floor coring
• Pipe and cable routing in construction
• HVAC and utility hole drilling
• Brick and block structure penetration
• Infrastructure or renovation projects
Why Work With Us
• Trusted diamond tool supplier with experience in OEM/ODM manufacturing
• Full range of core bit sizes and thread types available
• Professional support for large orders and distributor partnerships
• Consistent quality, quick turnaround, and global shipping options








