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China 18-600mm Diamond Core Drill Bits for Concrete Reinforced Concrete Manufacturer, Exporter
Product Description
Product Introduction
Our premium laser-welded diamond core bits are engineered for high-performance drilling in reinforced concrete, brick, and asphalt, featuring advanced laser technology that creates a metallurgical bond significantly stronger than standard brazing to prevent segment loss. Built with a deformation-resistant 45# seamless steel pipe and high-grade industrial diamonds, these bits reduce segment drop rates by 20% while delivering exceptional cutting speed and wear tolerance. Designed for both wet and dry applications with a standard 1-1/4" UNC thread compatible with most professional rig-mounted motors, they offer a versatile solution that can be customized in lengths from 400mm to 600mm to suit any specific project depth.
Key Features
01
Ultra-High Welding Strength
Utilizing zero-porosity, high-frequency welding technology, our bits offer exceptional heat resistance and a 20% lower segment drop rate for maximum safety during heavy-duty drilling.
02
Premium Diamond Grade
Engineered with strictly selected, high-grade industrial diamonds, ensuring a sharp cutting edge, superior wear tolerance, and a significantly extended tool service life.
03
Deformation-Resistant Body
Constructed from 45# seamless steel pipe, the robust barrel maintains high structural integrity and precision even under extreme torque and high-pressure conditions.
04
High-Speed Sharp Cutting
Featuring a specialized top-bevel segment design, these bits ensure a fast, aggressive start and smoother penetration through reinforced concrete and masonry.
Technical Parameters
| Diameter (mm) | Thickness (mm) | Length (mm) | Connector | Teeth No. |
|---|---|---|---|---|
| 18mm | 1.5 | 450 | 1-1/4" | 1 |
| 20mm | 1.5 | 450 | 1-1/4" | 1 |
| 22mm | 2.0 | 450 | 1-1/4" | 2 |
| 25mm | 2.0 | 450 | 1-1/4" | 3 |
| 28mm | 2.0 | 450 | 1-1/4" | 4 |
| 32mm | 2.0 | 450 | 1-1/4" | 4 |
| 36mm | 2.0 | 450 | 1-1/4" | 4 |
| 38mm | 2.0 | 450 | 1-1/4" | 4 |
| 42mm | 2.0 | 450 | 1-1/4" | 4 |
| 52mm | 2.0 | 450 | 1-1/4" | 5 |
| 57mm | 2.0 | 450 | 1-1/4" | 5 |
| 62mm | 2.0 | 450 | 1-1/4" | 6 |
| 67mm | 2.0 | 450 | 1-1/4" | 6 |
| 72mm | 2.0 | 450 | 1-1/4" | 7 |
| 77mm | 2.0 | 450 | 1-1/4" | 7 |
| 82mm | 2.0 | 450 | 1-1/4" | 8 |
| 92mm | 2.0 | 450 | 1-1/4" | 8 |
| 102mm | 2.0 | 450 | 1-1/4" | 9 |
| 107mm | 2.0 | 450 | 1-1/4" | 9 |
| 112mm | 2.0 | 450 | 1-1/4" | 10 |
| 117mm | 2.0 | 450 | 1-1/4" | 10 |
| 122mm | 2.0 | 450 | 1-1/4" | 10 |
| 127mm | 2.0 | 450 | 1-1/4" | 10 |
| 132mm | 2.0 | 450 | 1-1/4" | 11 |
| 142mm | 2.0 | 450 | 1-1/4" | 11 |
| 152mm | 2.0 | 450 | 1-1/4" | 12 |
| 162mm | 2.0 | 450 | 1-1/4" | 12 |
| 172mm | 2.0 | 450 | 1-1/4" | 13 |
| 182mm | 2.0 | 450 | 1-1/4" | 13 |
| 200mm | 2.0 | 450 | 1-1/4" | 15 |
| 225mm | 2.5 | 450 | 1-1/4" | 16 |
| 230mm | 2.5 | 450 | 1-1/4" | 16 |
| 250mm | 2.5 | 450 | 1-1/4" | 17 |
| 276mm | 3.5 | 450 | 1-1/4" | 19 |
| 300mm | 3.0 | 450 | 1-1/4" | 21 |
| 350mm | 3.0 | 450 | 1-1/4" | 23 |
| 400mm | 3.0 | 450 | 1-1/4" | 25 |
| 450mm | 3.0 | 450 | 1-1/4" | 28 |
| 500mm | 3.0 | 450 | 1-1/4" | 32 |
| 550mm | 3.0 | 450 | 1-1/4" | 36 |
| 600mm | 3.0 | 450 | 1-1/4" | 40 |
Customer Review
Frequently Asked Questions
Q
Can these diamond core bits be used for both dry and wet drilling?
Yes, these laser-welded diamond core bits are engineered for both wet and dry applications. Using water during drilling is recommended when possible, as it significantly extends segment life and aids in cooling.
Q
What materials are these core bits suitable for?
They are specifically designed to penetrate tough building materials including heavily reinforced concrete, brick, block, masonry, and asphalt.
Q
What type of connection thread do these core bits have?
These bits come with an industry-standard 1-1/4" UNC female connector, making them directly compatible with most professional rig-mounted core drill motors on the market.
Q
Why is laser welding superior to traditional brazing?
Laser welding creates a high-strength metallurgical bond between the diamond segment and the steel barrel, offering high thermal stability and reducing segment drop rates by up to 20% compared to conventional brazing.
Q
Are custom lengths and diameters available?
Yes, while our standard effective drilling length is 450mm, custom options from 400mm up to 600mm can be tailored according to specific construction project depths and requirements.
