Bricks, Masonry, Asphalt and Concrete - making a hole in foundation wall

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Redsled
06-05-02, 10:30 PM
I have to make a six inch hole in my foundation wall to run a flexible air supply duct. This is a solid wall (not hollow blocks). Someone suggested that i use a hammer drill and drill a series of holes, the bust out the circle. I began that process with my 3/8 hammer drill (not very heavy duty) and it took forever to get the bit halfway in. Is there a better method or a suggested tool that i might rent for this task?

bungalow jeff
06-06-02, 05:53 AM
Yes, go rent a core drill and 6" diamond core bit.