Every minute you spend trying desperately to thread a tippet through a fly is a minute that could have been spent casting to those fish rising all around you. But with this handy, easy-to-use threading tool, tying on even the smallest flies is quick and easy. Just secure the hook on the powerful magnetic holder with the eye perpendicular to the line slot and thread your tippet through. Fits easily into a vest or shirt pocket. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Threaders.