I have a set of Hudy ltd edition wrenches. I love the handles, but the tips are just OK. For the price they really should be a bit better than they are. My 1.5mm I've had to replace the tip on once already(sheared off removing a rather tight pinion set screw)and when I bought a Hudy replacement tip I also bought a protek "TruTorque" replacement tip at the same time as well. Quality is top notch on those protek tips. I've used the Protek one a ton and it barely shows any wear. Honestly, I trust it more than my 1.5mm Hudy tip.

http://www.amain.com/protek-rc-truto...-set-4/p212283

You definitely can't go wrong with those MIP tools that everyone mentioned in this thread. I can't stand the look of those urine colored plastic handles, but EVERYONE swears by the quality of those drivers.

To save a few bucks, the best deal might be to find a really cheap set of drivers that can use the standard replacement tips (maybe even a used set of tools) then just buy 1.5mm and 2mm good quality replacement tips. I do recommend those protek replacement tips. They're only around $6 each and are great quality.

All of my kits are metric, but I often need to use a 1/16th driver for random pinions and TC wing mount screws. It's handy to have a good one of those too. If a 1.5mm driver feels a little bit loose in the hole, it's probably actually a 1/16th