I think my pin vice, very like the Tamiya (probably the same but half the price!) is from either Shesto or Modelcraft tools. I also bought a set similar to the one posted by Wojtek, although the pin chucks are nylon, which I found on e-bay for around £4 from memory.
My largest drill bit is 3mm, but I normally drill smaller, and then ream or file with a rat's tail jewellers file.