This is the easiest and fastest gadget we've found for threading flies onto your tippet. The notch with underlying magnet firmly holds the eye of the fly in the grove making it easy to thread even the smallest hook sizes.
How to use
Step 1: Insert the eye of the hook downwards in the notch. It will be held in place by a built in magnet. Step 2: Insert the line into the groove. Feed the line down the groove and through the eye of the hook. Step 3: Pull the threaded hook off the magnet, and tie with you favorite knot to secure it to your line. That is all there is to it. The only thing easier would be to have someone else thread it for you.