11/32 is extremely common, which is why it is always included in nutdriver sets and 1/4" drive sets. used all the time on self tapping machine/sheet metal screws, electronics, etc.
the other two not so much. there is also 19/32, again not so common. when I run into those sizes, they are generally the cheap Taiwan 40pc. socket sets, or old cman/snapon/S-K, etc. from 50's or earlier. I have never personally used them, and when I come across them (seems like a lot of double bone cman wrenches in those 17 or 19/32 sizes pop up) I always exchange them for normal sizes (especially since you can't generally get them anymore).