Basic's of How to core drill
When laying out holes for concrete core drilling everything relies on center measurements. A core drill bit is round so it follows logic.
Some things you might not know:
A) When possible use a lead #2 pencil to temporarily mark your core drill hole center's.
B) Be accurate. Once your core drill bit touches concrete the damage can not be reversed.
C) Then (when your sure about where the holes need to be located) use a permanent black magic marker to outline the diameter of the hole. Do this so your marks are not washed away by the core drilling process. Wet Concrete is harder to leave a lasting mark on.
How to lay out hole's for concrete core drilling.
BlueFlag Service's Inc.
BlueFlag Services Inc.
Home for Charlotte
We literally core drill thousands of hole's in concrete every year. Some of our methods are not in the rules book. Use this website knowing that you alone are responsible for your own safety when core drilling.
124 Dorton St. #313
Charlotte NC 28213
704-245-0119 Boss's Phone
to see your
core drilling mark
as you are drilling
Center of Hole
How to lay out holes for core drilling.