3 inch core drill hole for electrical panel

Just to show that often homeowners and residential contractors also need core drilling at times, we exhibit the following pictures to prove that it does happen. This is a small project on Hempstead Place in Charlotte, NC. It was a considerable thick concrete wall at 12-inches for a garage, even if it was a two story one. It took about 1 gallon of water to core drill this wall with the Milwaukee 4097 core drill motor. These motors are designed to run a little higher RPM to holes from 1 to 4 inches in core drill bit width.