I recently contracted to have a 7' X 4' metal trellis made which will be attached to, but about 3" to 4" from my brick chimney. The Clemitis vine there has outgrown the #10 electrical wire I hung a couple years ago. When I called the fabricator to see if the trellis was done, he said the installation is pretty straight forward, but he used a hammer-drill. I was anticipating using my standard woodworking DeWalt drill with a Masonry bit to put about 2 or 3 Masonry anchors in the brick chimney and stabilize the trellis to the Masonry anchors. Do I really need to rent a hammer-drill? I've never used one. I've only once needed to drill into the mortise of a brick wall with a Masonry bit. It wasn't easy, but I got the job done.