I purchased this set over a year ago to remove a few stripped screws in a water damaged iPhone 4s, assuming I would need to use the included extractor blade. I was surprised to find that the Phillips head was able to remove the stripped screws without any difficulty. Since then the set has been indispensable on several other iPhone repairs. The set also comes with a lifetime warranty.
-- Philip Thomas
6-Piece Slot/Phil/Screw Extractor Combo Reversible Driver Set
Available from Amazon