Can I bring my pocket knife w/me on an airplane?

I have this swiss army knife that I have had ever since I was little and I use it almost every single day. I will be traveling to Australia and New Zealand in about a week for 22 days and I'm not sure if I could live w/out it. It' is about 1.5 inches long and it does have a sharp tip. It also includes a small scissors with a sharp tip aswell. I looked at the TSA guidlines but they weren't much help when it came to this question of mine. I would appreciate if someone could give me some advice. Thanx.