I bought this for my truck's lug nuts as the previous owner didn't give me a wrench. The socket looks great and seems to be of high quality. However, the socket does not fit my wedge nuts. He's just too small. The problem here is my problem but the reason I took off a star is because people like me who only buy one outlet might not realize the right size just by looking at it. A chart or diagram describing the dimensions would be helpful!