Product Description:
Material: High manganese steel
Processing type: Forging
Use: Coal mining
ISO 9001:2008
Specializes in producing and exporting all kind of drill tools
Low price and supreme quality
Carbide coal drill bit
Coal drill bit/ coal bit:
Applications: Apply to the anchor-network support hole drilling in coal mine,
hydraulic project. Etc.
Characteristics:
1. High wear resistance and impact-resistance 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 be reduced.
5. Rock formation to be suitable t: F=4-12
3 wings/ 2 wings
Product description:
The coal bits are mainly used in coal and mine drilling.
We can manufacture all kinds of bits and shells according to customer's special
requirement.
Any requirement please contact us, we'll do the best service for you. Hope we
can establish a good business relationship
|
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 |