Coal Mining Roof Bolt

coal drill bit/coal bit

Applications: Apply to the ancher-network support hole drilling in coal mine, hydraulic project,etc.

Characteristics:

1. High wear resistance and impact-resistanct toughness;

2  to repeat repair &greaning are not necessary; long drill life;

3  high efficiency could be promoted sharply in penetration of high-medium hard rock formation;

4  labour intensity could could be reduced.

5  Rock formation to be suitable t: f=4--12

3 wings; 2 wings ; 

Product Description

The coal bits mainly used in coal and mine drilling.
We can do different measures according to customer's requirements.