The thread about Dental Loupes brought this to mind.

How many of you have an 'expensive' tool, something that isn't designed for fly tying, but that you've appropriated for your tying use?

I have a jeweler's tool that a friend gave me. It's a hot 'wand' that has a variable heat control box. It's intended use is in the carving of wax 'masters' for casting gold and silver. I use it for burning holes into deer hair bugs for eyes, triming stray fibers, putting bends in legs, etc.. A soldering gun or wood burner would work for this, but it's such a cool tool and the variable heat feature means I don't overheat things when I use it. A 'new' one is several hundred dollars.

Anyone else use anything unusual and expensive for fly tying?

Buddy