TSA Compliant Tool and Whistle

I was frustrated by my inability to carry tools with me on carry-on baggage since I fly so often. This is a basic set which allows me to at least turn a screw, hold a nut, and open a beer, and whistle really loudly if truly necessary. The whistle will hold two standard hex bits for use with the tool, but will only work with one bit inserted. There is a standard and metric version. The metric version also has a square cutout for turning a standard drum lug (if you're into that sort of thing).