Diamond core drilling is used in mining exploration to probe the contents of known one deposits and potential sites. Utilizing an annualar Diamond-impregnated drill bit to cut a cylinderical core of solid rock, known as a core sample. Diamond core drilling programs generally have deeper targets, being more susceptible to deviation, and being more expensive to operate then other hard rock drilling applications, when it comes to borehole surveying instrumentation, there is much less tolerance for failure and higher demand for efficient, precise results.