This is new to me as I always had honda. Metric sockets. All size sockets fit on my 3/8th drive. On the pic, the hex bits show the larger socket that goes on the drive for the 3 hex bits ONLY. The next smaller socket is used for the rest of the hex bits. But I need another drive to fit it, a smaller one! This makes no sense to me. Normal? Just how it is I guess.