Borehole Drilling: Borehole drilling is performed to assemble detailed information about the sub-surface situations. We use different drilling approaches such as auger, rotary, and percussion to suit diverse soil forms.?????? ?????? ???? ???? ???? ??? ??? ???? ??? ???? ???? ??? ??????? ????? ?????? ???? ???? ??? ????? ???????????? ????? ???? ???? ?