Thanks sparsky ! You're certainly a genius !

I actually have the same blue and red allen drivers as in the pics. I believe they are from Team Magic but I don't think they make them anymore. I'm still trying to locate the spare tip for the 2 mm allen (red handle). Besides the Hudy, those are my favourites actually as they allow your to tighten allen screws tightly by forming a T wrench when you slot an allen driver in the hole of the other handle.