I like xcelite tools, with the changable heads. These are very reliable and the heads can be taken off and switched for others.
The only problem is the price, very good quality, but price point is good.
A few other notes:
-The IFI kits have Stainless Steel screws (which don't strip), but again expensive.
-Balled heads are useful as they can be used at an angle (so the head has a slight ball at the end to allow useage at above +/- 5 maybe 8 degrees)
-Also try to get some right angle hex drivers to use at right angles
~FVC 13. Can't wait till Atlanta, best of luck to all. Hope to meet up with some teams to work, and my team will also be happy to help all that need it.
This is our Vex home page with some great pictures of the competition in Hartford, Conn