Dry Core Bits - X300 - Masonry

Electrical contractors drilling anchor holes through brick and block walls rely on this 1-1/4 inch dry core bit to get the job done without water hookups. The X300 series from Diamond Vantage features a .110 wall thickness and 5/8-11 thread mount for standard angle grinders. Dry cutting capability means you can work on interior walls without creating slurry mess or needing a water source. The masonry-grade diamond segments cut clean holes through brick, concrete block, and similar materials. This bit handles repetitive drilling in residential and light commercial applications where you need consistent performance without the complexity of wet systems. Built for electricians, HVAC installers, and general contractors who need reliable anchor and penetration holes in masonry walls.