I'd just pick up an inexpensive set of Torx bits at Harbor Freight or something in all honesty. I think my front seats were either a T40 or T45, but the rears also require a T50. If there's one thing I've learned from working on my Focus, it's that it was absolutely necessary to invest in a metric nutdriver set, all sizes of Torx bits, and an interior trim removal tool :arr::lol:
-Brian