The problem with the screwdriver kits is that there is a kind of curse. There is always something missing, or an exotic head format or lacks in size, in short we must always buy something. Regarding the DIY our various electronic devices, look no further, this kit will prevent you from finding yourself in this situation, until finally Apple (random) decided to invent a new live format.
For now, this kit includes everything needed. There is a small magnet in the screwdriver handle is handy to avoid going hunting for live, dangerous sport that earned me to toast a portable PC motherboard in the past. Only complaint, I think the price is a little high, but the quality is there.