Product description
Specifications 1. Manufacturer of varies carbide coal bits
2. Dry-type & wet-type, thread connection type
3. long use life, competitive price
Coal drill bit/ anchor shank coal bit/ coal bit: 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, have dry-type & wet-type. 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 |