Chosen Solution

Good day, I ordered in eBay a Pentalobe to replace the battery of a 2009 MacBook Pro 15" and got a 1.2-50 Pentalobe. It’s a bit small for my battery screws. Btw Apple installed a faster HD in my MacBook when I bought it, and casually the battery screws look a bit worn, so maybe the Apple service installed bigger screws. Anyone knows what size of Pentalobe to look for? Thank you very much! Update All sorted with the 54 bit driver kit!

I’ve been able to open all the MacBoks with the bits out of this kit: [linked product missing or disabled: IF145-022-1]