To make drilling large holes into concrete easier on you and your drill, start with a 1/8- or ¼-in.-dia. bit.
Then enlarge the hole with a slightly larger bit, say, 5/16 or 3/8 in.
Continue to use progressively larger bits until you’ve drilled the desired size hole.
Listen to the embedded audio clip above to learn more about this Simple Solution!
Read the blog from the March 30 Today’s Homeowner Radio Show and listen to the full broadcast here