Can't take enclosure off external hard drive

It is my understanding that when an external hard drive is broken, often it's just the enclosure and the hard drive inside that stupid box is still working. I've had this happen before and I now buy only drives that I plug into a dock.

Well I've got this external hard drive lying around and I would take it's enclosure off, but I can't because it doesn't have normal screws.

I wasn't pursuing this problem, but I just happened across that video on the iFixit channel on Vimeo, and saw that the "pentalobe" screw looked like the screws on my external hard drive. So I got it out of my closet and to my dismay found out that the screws on it exactly resemble the pentalobe screws except there's a pin in the middle.

Does anybody know if you can get a screw driver for those?