Ideal for creating 3-inch openings for pipes, drains, and other large conduits, the 76 mm Diamond Core Drill is designed for wet drilling with a drill rig. It cuts quickly and cleanly through heavily reinforced concrete, refractory, and dense masonry. The drill features laser-welded diamond segments for durability and an aggressive cut, while its 1 1/4" UNC female backend provides secure compatibility with professional core drill rigs.