What can I bring back from the United states?

[igidoo]

I am lucky enough to be going to the United States next month and will be visiting a number of Firearms shops whilst there and have permission from the minister of war and finance (my wife) to bring back some toys. My question is can I bring back things such as go gauges and nogo gauges and tools for rifles? No rifle parts or ammo I understand but I don't want to lose anything at customs nor have any legal problems.
Just need the Aussie dollar to climb as much as Possible in the next 4 weeks.

Thanks
igidoo.

[willow]

Gauges and tools should be fine. They are not weapons and they shouldn't be ITAR controlled items.