Diamond Core Drills
Diamond Core Drill Bits for Concrete, Masonry & Asphalt
Diamond core drill bits are the professional's choice for creating clean, precise circular holes through concrete, masonry, asphalt, and block — without cracking or spalling the surrounding material. Buster's Industrial stocks wet core bits in sizes ranging from 1.5" for small conduit penetrations to 10" for large HVAC and structural openings. Read our complete core bit selection guide for DFW contractors.
Who Uses Diamond Core Drill Bits?
- Plumbing and mechanical contractors drilling through concrete floors and walls
- HVAC crews creating duct and pipe penetrations through slabs and masonry
- Electrical contractors running conduit through concrete structures
- General contractors and concrete cutting specialists
- U.S. Government agencies (GSA MAS Contract #47QSMS25D007Y)
Wet vs. Dry Core Bits
Most of our core bits are designed for wet drilling — water is fed to the cutting face through the barrel to cool the diamonds and flush concrete slurry. Wet drilling dramatically extends bit life and produces the cleanest holes. For jobsites where water use isn't practical, dry core bits are available — these use special bond formulations and should be used with a vacuum shroud to control dust.
Sizing Your Core Bit
Size your core bit to the finished hole you need. Account for the bit wall thickness — a 2" core bit produces a 2" inside-diameter hole. For pipe and conduit work, always size up at least 1/4" from the pipe OD to allow for sleeve or seal installation. See our full size range from 1.5" through 10" in this collection.
Need help matching a core bit to your drill motor and application? Call 817-367-9101 — we help contractors in Fort Worth, Dallas, Arlington, and across North Texas get the right bit for the job.
