I wonder if these things would get past airport screenings?
(I wouldn't try it but my guess is that others would)
Jerry
It's listed in the FBI's Guide to Concealable Weapons:
http://datacenter.ap.org/wdc/fbiweapons.pdf
but the one they show is the older version that isn't disguised as a wrench.
The original had just regular round holes where there are now hexes. Even
though it's on the list, I would bet you could get it past 99% of airport
security by casually saying it's a bicycle wrench.
Rob