The drill bit plays an important tool for a water well drill rig to drill a water borehole. The quality of a drill bit is very important too, the drilling efficiency and the quality of borehole formation depend on the quality of a drill bit. So, we need to a choice and use the drill bit carefully. When drilling water well, the driller should take good care of the drill bit, so that the drill bit can better conduct the drilling work.
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After the drill bit of the water well drilling rig is drilled into a certain depth, the drilling bit needs to be replaced in time. When finished drilling the water well, the bottom of the hole needs to be cleaned. When the drill bit stops rotating, a drilling bit in the water well drilling rig has to be slowly lifted upwards.
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There will be some rock residue at the bottom of the water well borehole, and the rotating part of the eccentric drill bit will be stuck. At this time, you need to ensure the DTH hammer works as soon as possible and it is necessary to send compressed air and clean the water borehole.