I made it through the TSA a bunch of times with my Swiss+Tech Utili-Key. If you want to have a keychain multitool on the plane, this seems like an option!

Which version? Is it the one with about 2" of blade or the one with about 3/4" back near the hinge? The one with the shorter blade should pass as a pair of scissors.

This one:

http://www.swisstechtools.com/proddetail.aspx?pid=5

heh, the internet knows all ... 7 years ago at according to comments

So,it makes through security, then what? About the only thing it is good for is cleaning fingernails.

Whether it makes it through or not, it does qualify as a prohibited item. Carry at your own risk.

I'd rather not risk confiscation or missing my plane just to carry something I'm certain I won't use. Anyway, for what would you use that on the plane?

I've used it to open a bottle of medication on the plane.

This one may make it under the scissors catagory due to the placement of the edge.

+1 on that. I never had a need for a tool. I mean if do get something packed, your hands will do. If not the flight attendent will have something.

These tools are way too small to work well, don't really consider them to be usefull in a emergency either.

My experience has been different. My LM Style PS has made it through TSA screening hundreds of times and has saved the day repeatedly for small jobs.

• Beard trimmer guide failed morning before important meeting -- using the little pliers and a paperclip, fashioned a temporary repair that allowed me to trim my beard before the meeting and not look like a hobo
• I used the tiny scissors to score and cut packaging material in the parking lot outside a shipping location to get box ready to ship
• The little pliers have been effective many times in customer datacenters to hold or grab things that my fingers weren't adequate for
• Many times I've used it to open packages more effectively than a car key
• Even the screwdriver, which is definitely not its best tool has been useful in customer datacenters
• Opening beer bottles

+1.The Leatherman small tools are quite effective> My PS4 would be quite welcome in an emergency. Others are not so good. The Utili-key is just plain silly, but it does take up space in my junk drawer

Don't have a Utili-Key but I do have a LM Squirt E-4 (predecessor to the ES-4). It has proved to be very useful on more than one occasion. The wire-strippers are real but in a small package.

Mine was confiscated 9 years ago.

Allowed or slipped though security are different things...

http://abcnews.go.com/US/tsa-director-reassigned-wake-security-failures/story?id=31458476