Just to expand on the 6 versus 12 point socket discussion. I would say that for 3/16th and below stick to 6 point. Yes I know it's not a common size for most people to deal with but, if you ever have to remove an electrical connector from a bracket or bulkhead the bolts will be hex and 12 point sockets will just mangle them.
I have a lot of Proto sockets and spanners, never let me down. I would suggest getting really good ratchet handles and then buy medium quality sockets. If a socket breaks on you then replace that size with Snap-On or Craftsman or the ilk. Ratchet screwdriver? Well got to be Snap-On, preferably the older style on with the plastic handle, not the newer ergonomic disaster with the changeable shaft....