Core Bits For Concrete - X300 - Concrete

Electrical contractors drilling conduit holes through foundation walls and structural concrete will find this 1-1/8 inch diameter core bit handles the job efficiently. The X300 series from Diamond Vantage uses a .125-inch thick wall construction with 5/8-11 thread mount for standard angle grinders and handheld core rigs. This size works well for running electrical lines, plumbing vents, and small mechanical penetrations where you need clean holes without overcutting. The diamond segment design cuts through concrete without wandering, giving you straight bores from both sides of the wall. Segments are laser-welded to prevent separation during heavy use. Built for electricians, plumbers, and mechanical contractors who drill multiple penetrations daily and need reliable performance on residential and light commercial projects.