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Coal Bit/coal Drill Bit/roof Bolt BitUS$ 1 - 500MOQ: 10 Pieces -
Best Selling Coal Mine Bit/coal Auger BitUS$ 1 - 500MOQ: 10 Pieces
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Best Selling Coal Mine Bit/tungsten Carbide Drill BitUS$ 1 - 500MOQ: 10 Pieces
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42mm Coal Drill Bit/coal Mining Roof BitsUS$ 1 - 500MOQ: 10 Pieces
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Manufacturer of Auger Bit/anchor Shank Bit/pdc BitUS$ 1 - 10,000MOQ: 1 Piece
Specifications
1.tungsten carbide drill bit,coal mine drill bit2.low price and supreme quality
3.manufacturer
4.Certified by ISO9001
Coal Bits
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
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 |
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