Hi, I'd just like to know what screwdriver is used to remove all the tiny screws on the keyboard. I've been trying to get the answer everywhere but no one seems to know; and ifixit doesn't have a guide to disassemble the keyboard for my model - they just have a basic tear down, but it completely skips the part involving the keyboard. I have a MacBook Pro 15" (Early 2011, model A1286). And yes, I acknowledge all the risks it takes to disassembling it.