Vortex wrote:

Hi,

I want to purchase some "Robertson #2" screwdriver bits.
http://en.wikipedia.org/wiki/Robertson_screwdriver

These have a square tip, and are commonly used in N America, especially
Canada.

Can anybody recommend a UK supplier for these? I'm having no luck.

They are now becoming more common here in NZ and most hardware
shops have them.
What I want to know is, why were all the other kinds of screw
head ever invented? They are all stupid compared with the
Robertson. Maybe before 1908 it was hard to make them, but there
is no excuse now. I prefer to use nothing else.

Can anyone explain this statement, which apparently explains why
they are fairly unknown:
"Robertson had licensed the screw in England but the party with
which he was dealing intentionally put the company under and
purchased the rights from the trustee thus circumventing Robertson."