Coal Drill Bit/Roof Bit/Rotary Bit

Specifications

Specializes in producing and exporting all kinds of mining tools
Low price and supreme quality
roof bit, rotary bit
ISO9001.

Coal Drill 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

  

 

Specification:

Colliery Drilling Tools	Main Standard(mm)
	D	H	L	M
Thread joint	27	44	17	M14×1.5
	27	54	17	M12×1.75
	28	54	20	M12×1.75
	29	52	18	M14×1.5
	30	50	18	M14×1.5
	32	52	22	M14×1.5
	32	56	22	M12×1.75