Diamond PDC Square Core Barrel Drill Bit With Holders Drilling Tool For Petroleum Exploration & Water Well Drilling Polycrystalline Diamond Compact (PDC) drill bits have revolutionized the drilling industry with their excellent cutting efficiency and durability. PDC drill bits originated in the 1970s and have evolved into key tools for oil and gas exploration, geothermal drilling, and mining operations. Their ability to drill various formations in various wear and tear