Ughh I just have to share my frustration. I was going to upgrade my harddrive in my early 08 MBP and had read the online instructions and was ready to go. I knew ahead of time I'd need a T6 so I asked my boss (I work in a bike shop) if I could borrow his set of Torx wrenches. He lent me a T5 and I thought I'd give it a try. Well everything went great and I got inside the case no problem (the T5 worked fine on the RAM compartment without rounding out any heads). I get to the inside and I get everything ready to go and I try to pull out the hard drve itself. This is when I realize that there are two more Torx bolts holding the hard drive down, no problem my T5 will solve this...wrong. The T5 was just oh too small and I didn't want to risk rounding the heads so I had to put everything back together until I can make it to a hardware store Oh well the whole process was relatively easy so the second time it should go by quicker.