DB Series

This diamond core drill bit has excellent ability in drilling concrete, reinforced concrete and brick wall. Thinner diamond segment and thinner tube wall can easily reduce the resistance and increase the drilling speed. It may be ordered separately or with core drilling machine.

FEATURES:
1. Thinner diamond segment and thinner tube wall can easily reduce the resistance and increase the drilling speed.
2. Very fast cutting speed and low cutting pressure.
3. Different connection end for different drilling machine.
4. Especially effective in drilling through reinforced concrete
5. The diameter of them can be produce according to the requirement of users, the main dimensions are as follow table.

TECHNICAL PARAMETERS
DB042 
Diameter: 42mm  Working Length: 400mm  Seg. Nr.: 5  Segment size: 15x3.5x8mm  Thread: 1-1/4UNC
DB051  
Diameter: 51mm  Working Length: 400mm  Seg. Nr.: 5  Segment size: 24x3.5x8mm  Thread: 1-1/4UNC
DB056  
Diameter: 56mm  Working Length: 400mm  Seg. Nr.: 5  Segment size: 24x3.5x8mm  Thread: 1-1/4UNC
DB063  
Diameter: 63mm  Working Length: 400mm  Seg. Nr.: 6  Segment size: 24x3.5x8mm  Thread: 1-1/4UNC
DB066  
Diameter: 66mm  Working Length: 400mm  Seg. Nr.:6  Segment size: 24x3.5x8mm  Thread: 1-1/4UNC
DB076  
Diameter: 76mm  Working Length: 400mm  Seg. Nr.: 7  Segment size: 24x3.5x8mm  Thread: 1-1/4UNC
DB083  
Diameter: 83mm  Working Length: 400mm  Seg. Nr.: 7  Segment size: 24x3.7x8mm  Thread: 1-1/4UNC
DB089  
Diameter: 89mm  Working Length: 400mm  Seg. Nr.: 8  Segment size: 24x3.7x8mm  Thread: 1-1/4UNC
DB102  
Diameter: 102mm Working Length: 400mm  Seg. Nr.: 9  Segment size: 24x4x8mm  Thread: 1-1/4UNC
DB108  
Diameter: 108mm Working Length: 400mm  Seg. Nr.: 9  Segment size: 24x4x8mm  Thread: 1-1/4UNC
DB112  
Diameter: 112mm  Working Length: 400mm  Seg. Nr.: 9  Segment size: 24x4x8mm  Thread: 1-1/4UNC
DB120  
Diameter: 120mm  Working Length: 400mm  Seg. Nr.: 10  Segment size: 24x4x8mm  Thread: 1-1/4UNC
DB127  
Diameter: 127mm  Working Length: 400mm  Seg. Nr.: 11  Segment size: 24x4x8mm  Thread: 1-1/4UNC
DB132  
Diameter: 132mm  Working Length: 400mm  Seg. Nr.: 11  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC
DB152  
Diameter: 152mm  Working Length: 400mm  Seg. Nr.: 12  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC
DB160  
Diameter: 160mm  Working Length: 400mm  Seg. Nr.: 12  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC
DB165  
Diameter: 165mm  Working Length: 400mm  Seg. Nr.:12  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC
DB172  
Diameter: 172mm  Working Length: 400mm  Seg. Nr.: 12  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC
DB178  
Diameter: 178mm  Working Length: 400mm  Seg. Nr.: 13  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC
DB180  
Diameter: 180mm  Working Length: 400mm  Seg. Nr.: 13  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC
DB182  
Diameter: 182mm  Working Length: 400mm  Seg. Nr.: 13  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC
DB186  
Diameter: 186mm  Working Length: 400mm  Seg. Nr.: 13  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC
DB200  
Diameter: 200mm  Working Length: 400mm  Seg. Nr.: 15  Segment size: 24x4.5x8mm  Thread: 1-1/4UNC