- When working in different rock formations, choose different types of Extension Drilling Tools, axial pressure and speed according to the hardness of the lithology.
2. When drilling rigs, they must follow the principle of matching the three elements of the drilling (wind pressure, axial pressure, and speed) with the parameters recommended by the drill bit sample.
3. Before going down the well, please check the appearance of each part of the cemented carbide coal rock drill bit, and verify that the end face of the drill bit thread is consistent with the factory number on the drill bit packing box and certificate; whether there is a cutting-edge trademark mark on the surface of the drill bit tooth palm to prevent counterfeiting .
4. The drill bit should be reasonably stored on the rig to prevent dust and other debris from entering the drill bit.
5. When replacing the drill bit, make sure that there is no dust inside the drill tool, the air outlet is unobstructed, the threaded oil is applied, and the drill bit can be used after connecting the drill bit by means of lifting and rotating coordination.
6. Before replacing the new drill bit, carefully check whether the thread and teeth are intact.
7. When drilling the new Reaming Bit, run it at low axial pressure and low speed for 20-30 minutes, and then gradually increase it to normal axial pressure for use.
When working in different rock formations, choose different types of Extension Drilling Tools, axial pressure and speed according to the hardness of the lithology.
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