回答“iFixIt Pentalobe screwdriver doesn't fit”Guys. Here is the deal. I have been opening macbooks and macbook pros for at least 7 years now. All you need pretty much (99.9 of the time) is 3 screw drivers to open the back case also called and known as the lower case. Then you need a special screw driver (the 4th one) in case you may need to replace your macbook battery one day. Forget about anyone telling you anything else….just buy these 4 screw drivers and you will be fine. Also when trying them out you gotta have a magnifier with you if you don’t have good eyes and be able to distinguish between a torx screw (in the shape of a star), a phillips screw (in the shape of a cross), and a tri point screw (in the shape of a ….oh well…you know there are just 3 sides). Here they are: 1) T4 screw driver (this will open all macbook pros pretty much) 2) T5 screw driver (you need this for some macbooks as well as for other components inside of the macbooks) 3) PH00 (this is a very generic and useful philips screw driver that will open pretty much lot of...