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42mm coal drill bit/coal mining roof bits
USD $1 - $500
/ Piece
10 Pieces(Min.Order)
- 8000 Piece / Pieces per Month
- Qingdao Shenzhen etc.
- T/T Credit Card
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Product Details
| Place of Origin | Henan, China | Brand Name | ZM | |
| Model Number | Made-to-order | Type | Drill Bit | |
| Machine Type | Drilling Tool | Certification | Other, ISO9001 | |
| Material | Carbide | Processing Type | Casting | |
| Use | Well Drilling |
Product Description
Specifications
Coal mining bit -1.Reliable quality
2.Reasonable price
3.Long life and full model
4.Be certified by ISO9001
42mm coal drill bit/coal mining roof bits
Applications: apply to the anchor-network support hole drilling in coal mine, hydraulic project. Etc.
Characteristics:
- High wear resistance and impact-resistance toughness.
- To repeat repair & greaning are not necessary, long drill life.
- High efficiency could be promoted sharply in penetration of high-medium hard rock formation.
- Labour intensity could be reduced.
- 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 do different measures according to customer’s requirements.
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 | |
Contact Us
- Henan Zhongmei Drill Tool Co., Ltd.
- Contact nameAndy Wang Chat Now
- Phone86-371-13255921607
- AddressJindai Industrial Zone, Guancheng District, Kaifeng, Henan
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