Core Bits For Concrete - X300 - Concrete

Designed for HVAC installers drilling clean penetrations through concrete floors and walls for refrigerant lines and ductwork, this 1-1/2 inch X300 core bit handles standard residential and light commercial applications. The .125-inch segment thickness provides consistent cutting performance in cured concrete, while the 1 1/4-7 threaded arbor connection fits most handheld core drilling rigs. Diamond Vantage engineers this bit for contractors who need reliable hole-making capability without excessive wear on medium-duty jobs. The X300 series delivers straight holes with minimal wandering when properly mounted and operated at correct speeds. Built for mechanical contractors, plumbers, and electricians running conduit and pipe through concrete structures where accuracy matters more than speed.