speaking of tools... what size screwdrivers do i need?

[8o8]

Waiting for the arrival of a strap or two... and realised I dont have a screwdriver (i think thats what I need).

What size screw driver would I need for my PAM 111H.

Did I read somewhere that I need a 1.6mm screwdriver?

I've also got a deployment clasp so is that still the same size screwdriver?

And if I want to take m crown guard off whats the size of the screws there?

cant think of any other screws that I would be playing with some times in the near future...

and if any aussies read there... is there a good source for screwdrivers and/or tools locally?

cheers