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Description

Coal Cutter Drill Bit DBC89 is a special drill bit used in underground coal mine to bore big hole to carry out drilling work for gas check and drainage, water check and drainage, geological exploration and so on. This coal drilling bit is matched with face auger or spiral drill rod for coal mining. The penetrate speed is high in coal and soft rock drilling.

 

Features

Coal drill bit for soft rock and hard coal

Multi-stage design to expend hole and increase drilling speed

Matched with face auger or spiral drill rod

Gas and water check and drainage application

Cemented carbide coal mine drill bit

 

Specification

1.      Diameter: 89mm

2.      Cutting Wing Shape: complete cemented carbide

3.      Bit Quantity: 4

4.      Height of Drill Bit: 50-65

5.      Water Hole Quantity: 1-3

6.      Water Hole Diameter: 4-6mm

7.      Screw Size: 18*18

8.      Drill Bit for hard coal or soft rock drilling

 

Application

Applying to the drilling into hard coal or medium rock in gas check and drainage, water check and drainage, geological exploration, long cable hole and so on.



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Keywords:Coal Drill Bit
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