I don't fly often, but was curious to try carrying a few picks and wrench through airport security, so when the opportunity arose, I checked local laws (in both, my states of origin and destination), and the latest TSA regs (
http://www.tsa.gov/travelers/airtravel/ ... ems.shtm#7). My picks were less than seven inches long, so I tried it out.
I did not pass through the metal detector with them, and opted for the grope instead of the back-scatter (hadn't experienced it first hand and wanted to know for myself how invasive it was - would not let children be felt up by the TSA; afraid of sending the message that "your body belongs to you, and to people in uniforms")
I put my picks, uncovered, on top of my laptop to go through the x-ray and didn't get a second glance.
My belt usually doesn't set off the metal detector, and it occurs to me that I could conceal picks in my belt, then if the detector goes off, I could surreptitiously place them in a tray for the x-ray machine, but a. if you set off the detector you'd still wonder whether it was your belt, or your picks, b. if you do raise suspicion, it will be hard to claim you didn't know you had them on you, c. getting felt up the the TSA is much better than being taken to a back room and getting the jelly finger.
I would feel comfortable keeping them in my wallet, which I normally just carry through the metal detector, or in my shirt pocket, and then (not wearing a belt) I'd know whether the picks set it off, or not, and if so, I'd just put them through the x-ray without worrying about how it may go bad for having tried to conceal them.
D