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 heavy bit and a heavy motor made to cut concrete up to three feet deep. This motor has the power to really take you for a ride so it is best to lock it down or use a vacuum pump for safety sakes.