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Coal Mine Drilling Chisel Drill Bit

Coal Mine Drilling Chisel Drill Bit is generally used to drill holes within diameter of 50mm in middle rock by light-duty drills, Like Y6, Y10, Y24

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Introduction of Coal Mine Drilling Chisel Drill Bit

Coal Mine Drilling Chisel Drill Bit is generally used to drill holes within diameter of 50mm in middle rock by light-duty drills, Like Y6, Y10, Y24

Coal Mine Drilling Chisel Drill Bit is one of traditional drill bits with long history in the world, due to its simple production process, they are used widely in the world from the last century, itis generally used to drill holes within diameter of 50mm in middle rock by light-duty drills, Like Y6, Y10, Y24.

Coal Mine Drilling Chisel Drill Bits have different taper degree according to customers’ request. And the diameters varies from 20mm to 60mm.According to the total height of taper chisel bits, there are short skirt taper chisel bits and long skirt chisel bits. Usually short skirt means the total height of bits are 50 mm around, while long skirt taper bits are 75mm to 80mm around.

Parameter of Coal Mine Drilling Chisel Drill Bit

Type

Diameter

Tip Size

Taper

Weight

 

Dia

 

 

 

 

mm

inch

H*W

 

kg

Chisel Drill Bit

26

1 1/32

13*8

7

0.24

 

28

1 7/64

13*8

7

0.28

 

30

1 3/16

13.5*8

7

0.28

 

32

1 1/4

13.5*8

7

0.3

 

34

1 11/32

13.5*8

7

0.34

 

36

1 27/64

13.5*8

7

0.36

 

38

1 1/2

13.5*8

7

0.38

 

40

1 37/64

13.5*9,2

7

0.4

 

42

1 2/3

13.5*9.2

7

0.42

 

20

25/32

12*6

4

0.12

 

22

55/64

12*6

4

0.16

 

24

15/16

13*8

4

0.18

 

26

1 1/32

13*8

4

0.22

 

28

1 7/64

13*8

6

0.26

 

30

1 3/16

13.5*8

7

0.28

 

32

1 1/4

13.5*8

7

0.32

 

33

1 19/64

13.5*8

7

0.33

 

34

1 11/32

13.5*8

7

0.35

 

36

1 27/64

13.5*8

7

0.35

 

38

1 1/2

13.5*8

7

0.39

 

40

1 37/64

13.5*9.2

7

0.4

 

41

1 5/8

13.5*9.2

7

0.41

 

42

1 21/32

13.5*9.2

7

0.42

Pictures of Coal Mine Drilling Chisel Drill Bit

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