Use a socket wrench instead. Put a 1/4" socket on a ratchet, and your
Phillips
screwdriver bit in the socket, and ratchet away to your heart's content.
No
need for cordless drills.

Bingo....but use Square drive screws. the do not cam out like a phillips
which is particularly important in this case whe you can't get some force
*behind* the axis of the screw.

-Steve