The lighting segment core drill bits are laser welded by the advanced Dr. Fritsch full-automatic laser welding machine, which ensures achieve high welding strength.
The available sizes of laser welded lightning core drills are from 1 '' (25mm) to 14''(350mm) in size.
The core drill is used for professionally wet drilling different hardness of concrete, reinforced concrete.
Lightning segment design achieves the sharp and fast drilling performance.
Applications: drilling concrete, reinforced concrete, asphalt-over concrete with superior efficiency.
Features of Diamond Core Drill Bits
1) Laser welded technology.
2) Segment welding strength guaranteed in drilling works.
3) Segments height, working length and connection type can be customized according to your requirement.
4) Good control in Dynamic balance during rotation
5) Sharp and fast drilling speed with stable long lifespan
6) Different Quality level to choose
Product Display
The effective length of the core drill bit is 450mm.
The adapter type is 1-1/4" UNC.
The core drill segment height is 10mm.
The segment types is shaped like lightning segment.
Use environment: under wet conditions.


Specification
| Item No. | Diameter | Segment Height | Segment Number | Working Length | Thread |
| CWDF02545010 | 25mm | 10mm | 3 | 400/450mm | 1/2"BSP / 1-1/4" |
| CWDF03245010 | 32mm | 10mm | 4 | 400/450mm | 1/2"BSP / 1-1/4" |
| CWDF03545010 | 35mm | 10mm | 4 | 400/450mm | 1/2"BSP / 1-1/4" |
| CWDF03845010 | 38mm | 10mm | 4 | 400/450mm | 1/2"BSP / 1-1/4" |
| CWDF04045010 | 40mm | 10mm | 5 | 400/450mm | 1/2"BSP / 1-1/4" |
| CWDF04545010 | 45mm | 10mm | 5 | 400/450mm | 1/2"BSP / 1-1/4" |
| CWDF05145010 | 51mm | 10mm | 5 | 450mm | 1-1/4" UNC |
| CWDF05645010 | 56mm | 10mm | 5 | 450mm | 1-1/4" UNC |
| CWDF06345010 | 63mm | 10mm | 6 | 450mm | 1-1/4" UNC |
| CWDF07645010 | 76mm | 10mm | 7 | 450mm | 1-1/4" UNC |
| CWDF08245010 | 82mm | 10mm | 8 | 450mm | 1-1/4" UNC |
| CWDF10245010 | 102mm | 10mm | 9 | 450mm | 1-1/4" UNC |
| CWDF10845010 | 108mm | 10mm | 9 | 450mm | 1-1/4" UNC |
| CWDF11245010 | 112mm | 10mm | 10 | 450mm | 1-1/4" UNC |
| CWDF11745010 | 117mm | 10mm | 10 | 450mm | 1-1/4" UNC |
| CWDF12045010 | 120mm | 10mm | 10 | 450mm | 1-1/4" UNC |
| CWDF12745010 | 127mm | 10mm | 10 | 450mm | 1-1/4" UNC |
| CWDF13245010 | 132mm | 10mm | 11 | 450mm | 1-1/4" UNC |
| CWDF14045010 | 140mm | 10mm | 11 | 450mm | 1-1/4" UNC |
| CWDF15245010 | 152mm | 10mm | 12 | 450mm | 1-1/4" UNC |
| CWDF16245010 | 162mm | 10mm | 13 | 450mm | 1-1/4" UNC |
| CWDF16845010 | 168mm | 10mm | 13 | 450mm | 1-1/4" UNC |
| CWDF17245010 | 172mm | 10mm | 13 | 450mm | 1-1/4" UNC |
| CWDF18245010 | 182mm | 10mm | 13 | 450mm | 1-1/4" UNC |
| CWDF20045010 | 200mm | 10mm | 15 | 450mm | 1-1/4" UNC |
| CWDF22545010 | 225mm | 10mm | 16 | 450mm | 1-1/4" UNC |
| CWDF25045010 | 250mm | 10mm | 17 | 450mm | 1-1/4" UNC |
| CWDF28045010 | 280mm | 10mm | 19 | 450mm | 1-1/4" UNC |
| CWDF30045010 | 300mm | 10mm | 21 | 450mm | 1-1/4" UNC |
| CWDF35045010 | 350mm | 10mm | 23 | 450mm | 1-1/4" UNC |
| CWDF40045010 | 400mm | 10mm | 25 | 450mm | 1-1/4" UNC |
| CWDF45045010 | 450mm | 10mm | 27 | 450mm | 1-1/4" UNC |
| CWDF50045010 | 500mm | 10mm | 29 | 450mm | 1-1/4" UNC |
| CWDF60045010 | 600mm | 10mm | 31 | 450mm | 1-1/4" UNC |
Test
Drilling through C50 concrete containing 4 layers of 25mm diameter steel bars takes approximately 8 minutes and 10 seconds;
The drill bit has a lifespan of approximately 14 meters and an effective length of 450 mm.

Corediam Introduction
Corediam Tools Co., Ltd., as a high-tech enterprise, concentrates on researching & developing manufacturing and marketing diamond tools industry. We have the most extensive, innovative and powerful range of diamond tools for construction, stone and DIY markets. Corediam strives to be the leading professional supplier in the world through technology innovation.

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Why corediam
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1. Professional product knowledge - 15+ experience in diamond tools industry
2. Global supply - 60+ export countries
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