Nice wrench, I use it in my car where I need two basic wrench sizes 14mm and 17mm. This is useful in places where there isn't much room for the height of the socket wrench and there isn't much room to turn a regular wrench. I just want them to engrave a little arrow showing which direction you are turning. It's 50/50, I got it on track. Of course I could twist it before putting it on a nut or bolt, but it's a lot easier to just look at it and figure it out. No deal killer, just little things that make repairs less of a hassle. Hopefully they'll be 8mm and 10mm, those are the other two sizes I use a lot.