These are the same irons that are used to install Mono Coat on radio controlled air planes. When I sold all my planes and equipment, I kept a few doo dads, the iron being one of them.
You should be able to pick one up considerably cheaper at a hobby store that sells RC planes.
Now, I am getting into helicopters, I can crash them in my back yard just as easy and don't have to travel 12 miles to an air field to do it.