Dry Core Bits - X300 - Masonry

Designed for HVAC installers drilling refrigerant line penetrations through concrete block and brick walls, this 2-inch dry core bit handles masonry applications without water cooling. The X300 series from Diamond Vantage features a .125-inch segment thickness and 5/8-11 thread attachment for standard angle grinders. Dry cutting capability means faster setup on interior jobs where water containment creates problems. The segment design maintains cutting speed through CMU, brick, and soft concrete while managing heat through airflow. At 2 inches, this size works for standard electrical conduit and small utility pass-throughs. Thread mount provides solid connection during handheld operation. Built for electricians, plumbers, and mechanical contractors running penetrations through masonry walls on commercial and residential projects.