Core Bits For Concrete - X300 - Concrete

Designed for HVAC installers boring through foundation walls and floor slabs for refrigerant lines and condensate drains, this 5-inch X300 series core bit handles cured concrete with a .155-inch segment thickness that balances cutting speed with segment life. The 1 1/4-7 thread arbor fits standard concrete core rigs used on residential and light commercial jobs. Diamond Vantage engineers this bit for dry or wet drilling applications where you need clean holes without blowout on the back side. The X300 designation indicates a bond matrix formulated specifically for concrete hardness levels typical in structural applications. Built for drilling contractors and mechanical trades running multiple holes per job who need consistent performance without constant bit changes.