Concrete Core Drill Bit - Premium Black Precast Core Bore Bit

Designed for electrical and plumbing contractors drilling clean penetrations through precast concrete walls and panels, this core bit delivers consistent performance on jobsites requiring precise hole cutting. The black-coated diamond segments provide extended life when working with the dense, controlled-mix concrete found in precast applications. This bore bit cuts through reinforced precast without wandering, maintaining diameter tolerance for conduit and pipe installations. The segment design handles the hardness variations common in factory-cast concrete products while maintaining cutting speed. Standard arbor connection fits most handheld and rig-mounted core drilling equipment already on your truck. Built for trades running multiple penetrations daily in precast structures, parking garages, and tilt-up construction.