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hole in a brick wall
This is outside a substation near stanley county, North Carolina, where we are core drilling a 4 inch core drill hole with one of our own core drill bits and it went perfectly. The rig had to mounted upside down to be able to get center of where the penetration of the 13 inch reinforced brick wall need to be for the grey electric pipes to...
vacuum pump for core drilling
A vacuum pump is the unique way that a core drill operator can suck down a core drilling rig to a concrete floor. This method is preferred when core drilling most smooth concrete floors. The vacuum pump sits on the core drill rig usually between the two wheels if the rig is so equipped. A soft suction foam ring lines a channel on the bott...
core drilling samples
This is our work truck again, this time back in Concord, NC. This particular project involved core drilling through the shop floor of this former transmission shop on church street north. After we get done making a 4" hole in the floor a machine comes in and pounds segments of plastic tube some 30 feet into the ground. This allows the dir...
core drilling concrete floors
Core drilling through a concrete floor or concrete pad with a large 12 inch core drill bit is sometimes the type of duty that you like to pass onto the youngsters in the crew. It takes a large floor based core drill rig to core drill a 12 inch hole. We use a milwaukee 4004 core drill motor to make the big holes up to 14 inches. It a hea...