(Query received over email from Devaraj Krishnan)
Sir,
While we were involved in borewell operation in an already constructed house, one cutting edge (approx. 7-8 kg weight) out of four cutting edges of drill bit, broke and fell down at 32 feet depth. Only sand was coming out while drilling at 32 feet depth.
The contractor tried with a magnet and was unable to remove the same. He told us that the broken piece was stuck by the side of the drilled bore and we have to remove the broken piece with somebody else's help, and we will be able to continue the borewell digging only once it has been removed.
Since the space available is very limited, we want to use the same point for borewell. Please suggest how to remove the broken piece and specify the list of experts available in Bangalore immediately who can help us with this.
Regards