<HTML><HTML>I've had some experience with this.  Tried taking my tuning hammer in my carry-on numerous times and had varying results.  Ultimately found that because it's a "non-standard tool" over a certain length (5 inches?) it's up to the discretion of each TSA supervisor. When the TSA agent differed me to the supervisor, whom approved it, I asked what criteria they use.  She said that since it had a star tip it was "most likely acceptable", but still up to each agent's discretion.  I pressed her further and found that because of the unusual tip, it "couldn't be used to take apart the plane."  (You weren't planning to carry on a blow torch, were you? :)  Standard tools (screwdrivers, etc.) are a definite no-go for carry-on.  Of course, you should be able to check your tools without any problem. Cheers, Jim Wilson, L.A. Chapter In a message dated 9/21/06 6:57:04 PM, davidlovepianos@comcast.net writes: <BLOCKQUOTE CITE STYLE="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px" TYPE="CITE">Anyone travel on airplanes with tools recently without checking them, i.e. carry on? What's your experience? Will they let you on with them? I have a trip coming soon and it's either Fed Ex them tomorrow or risk getting rejected at security. David Love davidlovepianos@comcast.net www.davidlovepianos.com </BLOCKQUOTE></HTML>