Sears has a 6" T15 driver. That's what I use, and it's only $6 and change.
The back/side/bottom plastic case is friction fit to the front tightly (unless you've had it apart a few times). That first time taking the back off can be frustrating, but resist the urge to go at it with a flat head screw driver. You will mar the plastic, and uglify your Mac. Try leaving the two torx screws by the ports on the back on and pushing down on them with your thumbs while pulling up on the sides with your palm/fingers. Take it slow and be patient.
Once inside, that torx driver and a small (#1) phillips driver will let you take it the rest of the way apart if you want to. The evilest part with a 512ke is gonna be getting the power supply molex plug to the logic board unclipped without gouging your thumb or otherwise being a pain. The FDD in my 512 was held onto the chassis with phillips head screws, but have your torx driver ready just in case.
Good luck!
The back/side/bottom plastic case is friction fit to the front tightly (unless you've had it apart a few times). That first time taking the back off can be frustrating, but resist the urge to go at it with a flat head screw driver. You will mar the plastic, and uglify your Mac. Try leaving the two torx screws by the ports on the back on and pushing down on them with your thumbs while pulling up on the sides with your palm/fingers. Take it slow and be patient.
Once inside, that torx driver and a small (#1) phillips driver will let you take it the rest of the way apart if you want to. The evilest part with a 512ke is gonna be getting the power supply molex plug to the logic board unclipped without gouging your thumb or otherwise being a pain. The FDD in my 512 was held onto the chassis with phillips head screws, but have your torx driver ready just in case.
Good luck!