For use with #0001 Winder crank handles (3/8").

• Welded keyway driven spool fits smaller crankshaft and allows for twice the storage capacity of the standard storage spool that comes packed with the #0001 Winder.
• Storage Spool has a flange OD of 4.75" X ID of 3.50" X 1.52" inside width.
• Area to record the weight and type of line stored for easy reference.
• The keyway diameter that engages the crankshaft is 3/8".