Owned for about 6 months. I had to drill two large 1 1/4" holes (you read that right) in the cinder block wall to access the plumbing to install the water softener. A concrete mallet weighed about half as much as a drill and cost almost as much. So I really put the thing to the test. I've used in several other projects as well. Hammerhead instruments are owned by the Chervon Corporation (Skil, Kobalt, Craftsman). For the money, they're as good as it gets. No ", this isn't Milwaukee or Dewalt…