"Tellmeaboutit" wrote:
Why is it that tool kits (drill bit sets, screwdriver sets, etc.) made in
the US never include Robinson bits? They are far superior to Phillips or
slot drivers. Just curious.

Probably for the same reason they don't include Torx bits -- in the US, they're
a specialty product, and the vast majority of purchasers would have zero use for
them. It's certainly not difficult to buy them if you need them.