Marking Core drill holes.
When marking the layout for core
drilling you have to be precise. The reason being is simple. If
you layout a 100 lineal feet worth of holes that are 5' on center
and are off by and 1/4" by the time you go drill your 4th hole
the center's will be off by an inch. This is not something that
is acceptable to most Contractors who rely on your skills to hit
center every time you drill. A good way to mark centers for every
core drill hole is to make a cardboard outline of the size bit
you are using as a template and then transfer the layout to the
concrete by using a magic marker or grease pen. If the original
measurements are correct the outline of the hole on the concrete
surface will be much easier to see when you core drill it.
The Tools shown above for exact
layout and marking of concrete core drilling holes are homemade.
On the left is cardboard cutout of a 10" core drill hole while
the the right picture is of a tool we made years ago that greatly
speeds up the layout of 4" and 3 1/2" core drilling holes.
BlueFlag Service's Inc.
BlueFlag Services Inc.
Home for Charlotte
Hey. If you got this deep into our site
you might be a core driller. Did you own a core drilling rig?
Would you like to be part of our company? We receive calls from
all over the east coast about core drilling projects. Give us a
call maybe we can work together.
124 Dorton St. #313
Charlotte NC 28213
704-245-0119 Boss's Phone