I use the PM rigid base 3 in vise on my 728. I had to make custom keys. It dials in nicely. I use a 3/8 collet almost exclusively. 1/2 is pretty much the limit of the 728 because of vibration. The 932 can probably go 5/8. I wouldn't buy a collet set. Just buy individuals what you need. My frequently used tools are: 3/8 collet, 3/8 end mill, drill chuck, center drill, drill index, edge finder, live center, v-block set, bench grinder for hss lathe tools. I'm mixing mill and lathe, sorry. I make some of my own tooling, especially for the lathe. I made a boring bar, hss bit holder, small tap holder, and small die holder. I'm building my own design model steam engine so that keeps me focused on what to learn as I proceed through the project. I avoid buying stuff before I need it. It's expensive and takes up space. I'm finding that a handful of items get the job done. If not, I try to make tools.