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Coal Mining Drill Bit for Twist Drill Rod

Two Wings Tungsten Carbide Coal Bit Coal bits are mainly used in coal and mine drilling, have dry-type & wet-type. 1. Mainly used in coal and mine drilling 2.Dry and Wet Type available 3.Dimension:25, 27, 28, 29, 30, 32, 36, 42 mm. 4.Normal Thread Model:M16*2;M14*1.5,...

Two Wings Tungsten Carbide Coal Bit

Coal bits are mainly used in coal and mine drilling, have dry-type & wet-type.

1. Mainly used in coal and mine drilling
2.Dry and Wet Type available
3.Dimension:25, 27, 28, 29, 30, 32, 36, 42 mm.
4.Normal Thread Model:M16*2;M14*1.5, M12*1.75;M14*1.5;M12*1.75
5.We can do different measures as per customers demand.


Specifications of twin wing coal bits

Colliery Drill 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

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