coal mining bits

Coal mining bits/coal bit is used on different drilling machines. 
Heat treated alloy steel body 
Sharp-nose carbide tip

T & X can provides different coal mining bits/coal bit for Soil Drilling Rock Drilling ,Diaphragm Wall Drilling,Cased Drilling and Soft Soil Drilling,Hard Rock Drilling Roller Bits.

Our coal mining bits/coal bit can be used for soft to hard rock, concrete, most soils, broken or laminated rock, etc.

The coal mining bits/coal bit can also be applied for large diameter extra heavy duty style augers, drilling and tunnel boring in the most extreme hard rock and concrete, most cutting conditions.

 

Alloy steel body, made by material ASTM4140 or 42CrMo, the heat treatment with 38-42HRC, has high toughness and wearable character.

Tips with over 50HRC is made from low press sintered, and the suitable selected grade according to the target projects, which can make sure the good performance during the drilling work.




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