Dry Core Drill Bit - Continuous Rim Core Bit - Concrete

Engineered for HVAC technicians drilling clean holes through cured concrete walls and floors for refrigerant lines and condensate drains. This 2-3/4" continuous rim core bit features a .080 wall thickness and 10mm arbor connection, delivering consistent performance in residential and light commercial applications. The continuous rim design produces smooth cuts without chipping, essential when working near finished surfaces or where appearance matters. Dry cutting capability eliminates water hookup requirements, reducing setup time on interior jobs. The narrow kerf removes less material per hole, extending bit life while maintaining cutting speed. Built for mechanical contractors and maintenance crews running penetrations in structural concrete up to 4 inches deep.