The PlayAction The ''Reel Crankie'' Line Winding Tool is made from aircraft quality 6061 billet (block) aluminum. The internal hardware is made of a durable corrosion-resistant 303 stainless steel for salt and fresh water use. The ''Reel Crankie''is designed to be attached directly to the existing reel handle mechanism. You simply slide it on and rotate the gold-knurled-ring to lock onto reel. Quick on and off. The 15 degree flexible shaft, with universal type joint, extending from the Reel Crankie is then attached to a hand-held 3/8 in., battery powered drill. This quick-action design gives you the ability to use the Reel Crankie in a rocking boat or a situation where you want to crank line back on your reel a deep depth. The small size and portability allows you to re-spool your reel at home or on the boat. One size fits a number of similar model reels from the same maker. Off-shore fishermen are using the Reel Crankie for deep-dropping with Swordfish, Snapper, and Grouper.