What kind of screwdriver do I need to open up my mid-2010 Macbook Pro 13", replacing the hard drive and possibly RAM? I don't think you need a screwdriver for the latter, but the other two tasks? Cheers.
As mentioned above, you'll need a Torx T-6 to unscrew the 4 "lugs" that are used to mount the drive into slots on the Macbook.
I found a multi-bit Torx driver at Lowe's (or was it Home Depot?) for about $8.
Useful to have around.
When you replace the RAM, be -GENTLE- with the clips that hold the RAM modules in place. The top module comes out easily, the lower one will take more finagelin'....