...if you have time, if there is a shipping center in the airport, if it's open, and if the cost of materials and shipping is worth the $35 Leatherman...Might even be the same cost to check it vs ship it at that point.
The first I went through TSA with an avalanche probe and collapsible shovel, they didn't stop me, so I thought it was allowed. On the way back they did and I had to rush check it
My only experience here was outside of the US, but once when screening found a pair of scissors in my carry on I did this. They gave me a lanyard to let me use the crew line to get back to the front of screening so it didn't take much time.
The first I went through TSA with an avalanche probe and collapsible shovel, they didn't stop me, so I thought it was allowed. On the way back they did and I had to rush check it