Half moon wrenches are great to have, but you will seldom use them. I can see the advantage of the Gearwrench in a half moon configuration, but it will be long time where you will actually have a situation where you will need them, where a regular wrench wouldn't fit. In 50+ years, I doubt that I could name 5 times where I had to have them to get at a bolt. The main use for half moon wrenches in the past was in body shops to remove the door hinge bolts. Other than that, I can't remembering when the were last needed. They would have to be 75% off before I would put them into the tool box for that rare occasion that I will need it.
