3. Hand Tools
Contrary to popular belief, lots of hand tools are now allowed in your carry-on. While saws and hammers are going to definitely raise flags, passengers are allow to carry tools under 7 inches in length. This includes screwdrivers, wrenches, and pliers.
Like with any of the other items on this list, it’s best to use discretion when packing tools. It’s probably best to skip the chisel, center punch, and definitely the utility knife.