The drill bit has a pivotal role in the drilling process of the water well drilling rig. When the water well drilling rig is in use, during the drilling process, the operator should pay attention to the drilling use of the drill bit, so that the drill bit can better produce the operation. Several aspects of the drill bit in the water well drilling rig need to be noted:

1. After drilling the structure of the water well drilling rig, the center drilling tool needs to be replaced in time. First, the bottom of the hole needs to be cleaned, then the residue at the bottom of the hole is blown clean, and after the drill bit stops rotating, the drilling tool in the water well drilling rig is slowly lifted upwards, and it is most suitable when the size of the lifting force is just enough to lift the drilling tool.   

2、Water well drilling rig bits in the drilling process summary, but also need to pay careful attention to observe the casing follow-up, timely understanding of the specific circumstances of the hole, when necessary to keep the hole clean, and water well drilling rig bits in the drilling process is forbidden to pull up strongly.

3、Sometimes there will be more residual slag at the bottom of the hole of the water well drilling rig, and the rotary part of the eccentric drill bit will be stuck by the slag and thus affect its closing production, then it is necessary to convey the pressure air, clean the hole again, and make the submerged hammer work for a short time, and then carry out the lifting operation of the central drilling tool again.