Impregnated Diamond Core Bits
The impregnated diamond core bit has emerged as the most commonly used type in the mineral exploration industry. The advantages of using impregnated diamond core bits over bits manufactured with other cutting media include

1: An extremely wide range of application.
2: A simple bit crown geometry that makes them less susceptible to in-hole damage than bits manufactured with other types of cutting media and as such are more tolerant of changing or banded geological formations.
3: Their multi-layered cutter arrangement results in better overall bit life than bits produced with other types of cutting media.
4: They are particularly well suited for drilling in hard, consolidated and non-abrasive formations.