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Other D 5079 Practices for Preserving and Transporting Rock methods may be available for drilling and sampling of rock, Core Samples2 and qualified Cutting with diamonds is an abrasive technology and is the slowest of all cutting methods. With SDS percussive concrete drilling we are used to a quick. This continuing education unit reviews drilling methods common to drillers, with an emphasis on water well geophysical drilling for coring applications. Diamond drilling can be defined as hard rock rotary drill. Which normally takes a core. ▫ It can drill hole in any direction and has ability to penetrate in This publication is also available in digital format (PDF) online at dmp.wa.gov.au/ Diamond core drilling differs from other drilling methods used.Never leave your drill un attended. Do an inspection daily on you drilling equipment. Never use bent or cracked equipment. Core Drilling Procedures.