We are leading manufacturer of drill bits, such as anchor shank bits, button bits, cross bits, chisel bits, coal bits, etc.
Minimum Order Quantity: 100 Piece/Pieces
Supply Ability: 5000 Piece/Pieces per Day
Payment Terms: L/C,T/T
Contact SupplierPackaging Detail: Wooden case.
Delivery Detail: 20 days
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 do different measures according to customers 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 | |