"Hammer Through Block Walls:"

From: Randy Dillon Wskyhome@aol.com

You can make perfectly round holes in block walls with a 32oz. ball peen hammer. In the middle of a cell, start pecking with the round end, making sure to hit the same spot each time. Pretty soon you'll get through the first side. Measure the other side and repeat the procedure.
This method may not be as accurate as a hammer drill, but it does save time. With practice you will need very little firestop to close around conduit.


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