floppy dave

all,
i have just bought a set of oz wheels on the cheep but they need the centres machinig from the 35 mm that they currently are to the scooby offset ( well im thinking a 45mm anyway ).

my brother is a cnc type person so the actual work isnt a problem, however im just checking that it wont cause a problem to the actual alloy strength wise? im thinking that it wont as in real terms i am only changing it to what it would have been if it had come out of the factory as 45mm ~~~~ are you all following?

has anyone got any opinions or had any experience of this? there is plenty of metal and depth to play with but i need the peice of mind before i stick them on the car!

many thanks in advance, floppy